Showing posts sorted by date for query TREE. Sort by relevance Show all posts
Showing posts sorted by date for query TREE. Sort by relevance Show all posts

Tuesday, August 18, 2026

 

Porcupines spread near Warsaw: 'It tasted some garden plants and got into the house'

How did these exotic animals end up in Poland?

A porcupine looks down from a tree in Ricketts Glen State Park, Monday, 19 May 2014, in Benton, Pennsylvania. (AP Photo/Citizens' Voice, Andrew Krech)
Copyright Copyright 2014 AP. All rights reserved.

By Katarzyna Kubacka
Published on

Porcupines have appeared in Mazovia and are increasingly visiting gardens and even homes. Authorities are searching for more and urging caution. How did these exotic animals end up in Poland?

The Leoncin commune, east-central Poland on 14 August reported an unusual visitor in the garden of one of the houses.

According to the account, the property owners alerted the authorities to a porcupine that first "sampled the garden plants", and as the owner was reporting its presence, "managed to get into the house".

The latest incident follows that of 11 August in Łomianki, where the first porcupine was caught and another was found in the Mazovian region. Both animals were placed under the care of a vet, who confirmed that they are healthy.

Search continues for the Bemowo porcupine

The "Kopytka z nadzieją" foundation, which cares for wild and farm animals, told local TV, TVP3 Warszawa that a total of three animals are at large. They most likely all escaped from the same owner.

According to various reports, in recent days porcupines have also been seen in Warsaw, the Polish capital itself. As the foundation reported on 15 August, searches are under way for the animal most recently spotted in Warsaw’s Bemowo district, 2–3 km from Fort Bema. So far there has been no information that it has been found.

The foundation is urging people to check "residential courtyards, green areas and places where the animal might try to find shelter".

Porcupines are large rodents, best known for their distinctive long quills. They are found mainly in Africa and Asia, where they use them to defend themselves against predators. They do not occur naturally in the wild in Poland, although some are kept by people.

The porcupines that have appeared around Warsaw most probably escaped from a private breeder, experts say.

Do not try to catch the porcupine

Some have been seen in the vicinity of the Kampinos Forest. The Kampinos National Park reported the appearance of such an animal last year as well. At the same time Vietnamese pigs also appeared in the area.

Both the "Kopytka z nadzieją" foundation and the Kampinos National Park are calling on people not to attempt to catch a porcupine encountered in the wild on their own. When it feels threatened the animal may defend itself, and its quills can pose a serious danger to both humans and dogs.

If we see a porcupine, we should, from a safe distance, watch which direction it is moving in, take a photo and send the foundation the exact location or a map pin according to a statement from the foundation which also announced its phone number: 883 720 000.

More and more wild animals at large

The presence of exotic animals on Polish territory is most often linked to private breeding. Experts point out that animals frequently escape from such facilities because of unsuitable conditions or because they are not adapted to life in captivity.

There are also cases where they are released by former owners who no longer want to or cannot look after them.

Experts also highlight the growing demand in Europe for exotic animals kept by private owners, often in conditions that do not support their welfare. At the same time environmental groups are calling for tighter regulations and better protection of wild species.

 

3,700 years young: Portugal is home to hundreds of ancient olive trees that outlive many generations

An image of olive trees near Alqueva, in southern Portugal.
Copyright GAEL CORNIER/AP

By Ema Gil Pires
Published on


How Portugal's University of Trás-os-Montes and Alto Douro works out the age of hundreds of ancient olive trees.

A tree was recently discovered in Germany which may be the oldest known in the country, at around 1,100 years old.

But in Portugal there are hundreds of trees estimated to be at least 2,000 years old, particularly olive trees, which over the years have been certified by the University of Trás-os-Montes and Alto Douro (UTAD)

The tree known as 'Oliveira do Mouchão', found in the municipality of Abrantes, is thought to be the oldest in the country at 3,350 years old.

It is an olive tree and "a contemporary of the Phoenicians, Celtiberians and Romans". According to UTAD, at the beginning of 2022 it was still "producing olives as if in the flower of youth, despite a trunk gnawed away by the ravages of time".

It has survived the passage of "invading peoples, barbarians and displaced peoples" over millennia, "thanks to the deep roots it has put down" in the soil. It was also one of the candidates in the 2022 European Tree of the Year contest, finishing fifth in the national competition.

The 3,350 year estimate was obtained using a method developed by UTAD researchers, already patented, which allows scientists to calculate the age of countless specimens, both in Portugal and abroad. It is based on a mathematical model that relates a tree's age to characteristics of its trunk, such as diameter, height or circumference, according to information published on the Florestas.pt portal, an initiative of The Navigator Company and Raiz – Forest and Paper Research Institute.

By the time the discovery in Abrantes was made, it was already possible to certify "many other millennial olive trees" spread across various parts of the country. Another noteworthy example is in Santa Iria de Azóia, in the municipality of Loures: a tree whose age was calculated at around 2,850 years at the time of analysis.

What is the oldest tree in Portugal?

Oliveiras Milenares, which has been working with UTAD on this certification mission since 2007, say that another olive tree has since been identified that is even older than the previous ones. It is in the Alentejo, more precisely on the Herdade do Peso estate, in Vidigueira, in the district of Beja, and is thought to be more than 3,700 years old, according to the assessment made in 2021.

'Oliveira do Peso', as it is known, also contested the title of Portuguese Tree of the Year 2024, a national competition in which it came third, the winner of which goes on to represent Portugal in the equivalent European competition.

Its candidacy was justified by the "heritage significance" of what is "the oldest millennial olive tree on the Herdade do Peso estate", located on a plain where there is "a group of olive trees whose combined ages exceed 7,000 years", according to a statement from the estate.

Other examples highlighted by the university are in Monsaraz, in the district of Évora, where there are several millennial olive trees, one of which is around 2,450 years old.

But there are many others in Portugal, scattered across places such as Estremoz, Montemor-o-Novo, Lagoa, Beja, Vilamoura, Évora and Serralves Park, in Porto, according to UTAD.

Abroad, the university says it has also been invited to date olive trees in countries such as Spain and France, notably in Bordeaux, Girona, Málaga and on the island of Menorca, where it has certified the existence of a tree more than 2,300 years old.

How do olive trees live for so long?

José Luís Louzada, a researcher at UTAD who developed the dating method, says that the olive tree is "without doubt one of the living beings that best withstand the passage of time, thanks to its strong capacity for rejuvenation". In this way, "a piece of trunk, no matter how old it is, has the capacity to sprout again", allowing the tree to continue "producing olives".

The researcher attributes this longevity, among other factors, to the fact that it is a species "very well adapted to our Mediterranean climate", which enables it to achieve "remarkable longevity".

In Portugal, these olive trees are found "especially to the south of the Mondego" and can, "in theory", live "for eternity", outlasting the many generations that pass through the same territory.

Monday, August 17, 2026

 

AMS Science Preview: Neighborhood hurricane warnings, wildfire increase, Earth energy



Early online research from journals of the American Meteorological Society



American Meteorological Society





The American Meteorological Society continuously publishes research on climate, weather, and water in its 12 journals. Many of these articles are available for early online access — they are peer-reviewed, but not yet in their final published form. Below are some recent examples of online and early-online research.


JOURNAL ARTICLES

What follows are summaries that have not been peer-reviewed or vetted by the article authors; read the full article for peer-reviewed conclusions. Please note that no single study is ever definitive, and each must be taken in the context of the broader scientific literature.

Top-of-Atmosphere Radiation over the Last Millennium Reconstructed from Proxies
Journal of Climate

Greenhouse gas–driven increase in Earth’s energy budget is “unprecedented” in last 1,000 years. Using tree rings, corals, and ice cores, the authors create the first reconstruction of energy entering and leaving the Earth system over the last thousand years. They find that the rate of energy gain associated with industrial global warming is unprecedented in the last millennium. Preindustrial cooling trends were largely caused by volcanic eruptions.

The Increasing Incidence of Boreal and Western US Forest Wildfires and Its Causes: An Overview
Bulletin of the American Meteorological Society

U.S. forest fire burn area has increased threefold due to climate change. The average area of boreal and western U.S. forest burned per year has increased by approximately a factor of three since 2000, with rapid increases in large fires, according to a comprehensive literature review. Smoke has also increased over much of North America. Burn area and fire-related carbon emissions are most sensitive to aridity, which has increased as predicted with climate change—strong evidence that global warming, rather than fire management issues, is behind this increased burning.

Impacts of Different Anthropogenic Forcings on Tropical Cyclone Frequency in Large Ensemble Climate Model Simulations
Journal of Climate

Greenhouse gases appear responsible for tropical cyclone shifts. Model simulations suggest that increased greenhouse gases are likely influencing a southward shift and reduction in frequency of tropical cyclones (TCs) over the North Atlantic and eastern North Pacific. While there is significant variance among different models, the authors suggest that atmospheric aerosols would have caused an increase in frequency and a northward shift starting in the 1980s had aerosols remained the dominant influence over TC frequency.

Enhanced Teleconnections of Maritime Continent Deforestation on North Pacific Climate During La Niña Conditions
Journal of Climate

Deforestation in the Maritime Continent causes North American warming during La Niña. Deforestation in Pacific island nations like New Guinea affects large-scale atmospheric circulation, a modeling study suggests. While its effects are more confined during El Niño, Maritime Continent deforestation may trigger significant effects in the North Pacific, including warming in North America, during La Niña—a state likely to become more frequent with global warming.

Local-Scale Wind Forecasting for Tropical Cyclone Early Warnings
Bulletin of the American Meteorological Society

A step toward neighborhood-level hurricane forecasting. Tropical cyclone (TC) wind forecasts are typically too large-scale to inform decisions at the neighborhood level. A new machine learning system, LiveCyc, transforms TC forecasts into probabilistic, kilometer-scale wind predictions accounting for local factors like topography, showing promise for helping local decision-makers optimize protective measures in advance.

An Object-Based Analysis of Lightning Characteristics in Pre-Tropical Cyclogenesis Environments
Monthly Weather Review

Can lightning help predict hurricane genesis? This study uses data from the Geostationary Lighting Mapper to classify types of lightning within five recent North Atlantic storms, four of which developed into named tropical cyclones (Claudette, Ida, Earl, and Beryl). It found commonalities among the storms that became TCs. If these hold true over a wider number of disturbances, lightning might become a tool for forecasting tropical cyclone genesis.

Precipitation Changes and Possible Mechanisms in the Global Arid Regions During the Last 40 Years
Journal of Climate

Arid regions are getting drier with global warming. Extreme precipitation is globally increasing with climate change. However, in seven of eight arid regions studied, precipitation and extreme precipitation both show decreasing trends between 1980 and 2024. The exception is North Africa, where precipitation is increasing faster than the global mean. While factors correlated with precipitation (such as humidity) show an increase, with rising temperatures they tend to decrease, and arid regions are warming faster than average.

Weathering the Artificial Intelligence Revolution: Public Attitudes to Potential Adoption of Machine Learning-Based Forecasts
Artificial Intelligence for the Earth Systems

UK public shows limited confidence in AI/machine learning weather forecasts. A survey of 6,000 people in the UK finds that 78% believe current numerical weather prediction forecasts are accurate, with high agreement among demographic groups. Only 47% believe that machine-learning weather forecasts would be accurate, suggesting the need for more engagement to identify and address concerns.

Hail Risk and Cropland Exposure Changes in the United States
Weather, Climate, and Society

Future hail risk in the Midwest and Great Plains. Hail is the third-costliest peril affecting crop production in the United States. This study finds that despite projected decreases in regional hail, the Great Plains face the greatest exposure-driven risk in the future due to the expansion of cropland into areas with extensive summer hail. Meanwhile, the Midwest and South may undergo hazard-driven loss increases due to more severe hail, despite negligible change in cropland extent.

Climate and Ecosystem Impacts of a Weakened Atlantic Meridional Overturning Circulation (AMOC) in Brazil
Earth Interactions

Global warming may reshape the Amazon and other Brazilian biomes. Weakening of the Atlantic Meridional Overturning Circulation (AMOC) due to rising ocean temperatures appears likely to reduce rainfall in the Amazon wet season and increase it in the dry season. Additionally, it may cause cooling in the Amazon, warming in central Brazil, and tropical forest expansion into Caatinga shrubland regions, according to a modeling study.

“When Should I Leave?”: The Effect of Impact Based Hurricane Wind and Storm Surge Emergency Alerts on Evacuation Intentions
Weather, Climate, and Society

Impact-based storm surge warnings may improve evacuation decision-making. A study of Florida and Louisiana residents found that “impact-based” hurricane storm surge warnings, which include information about adverse consequences such as road flooding, were effective in predicting intentions to evacuate, and were especially beneficial for those who had no prior experience with evacuation or storm surge.

Excellent Forecasts but Poor Outcomes: Why Can’t We Do Better?
Bulletin of the American Meteorological Society

Why do weather disasters continue? Despite vast improvements in our ability to predict dangerous weather, catastrophic damage continues. The author identifies reasons including inadequate communication, ineffective evacuations, infrastructure issues, nonspecific or unclear forecast guidance, or inadequate/delayed emergency response. He suggests reorganizing National Weather Service offices to prioritize warnings, improved federal investment in local prediction, and establishing a National Disaster Review Board.

Seasonal and Geographical Differences in the Marine Thermal Influence on US Coastal Air Temperatures
Journal of Applied Meteorology and Climatology

Oceans don’t always balance regional temperatures. In general, the ocean has a moderating influence on coastal air temperatures, warming in winter and cooling in summer. However, the authors find that on the U.S. East Coast south of Cape Hatteras (where the Gulf Stream is close to the coast), the ocean’s nighttime warming outweighs its daytime cooling effect, leading to an overall warming influence in spring/summer.

Design Challenges in the Hurricane Track Forecast Cone: Insights from Focus Groups with Under-Represented Populations
Weather, Climate, and Society

Disadvantaged communities struggle with the hurricane forecast cone. Focus groups of native Spanish speakers and members of economically disadvantaged communities in Miami examined the National Hurricane Center's popular Track Forecast Cone. Participants perceived the graphic to have too much clutter and an unclear layout. They struggled to interpret the cone shape, symbols and colors, watches and warnings, and forecast periods. They also expressed difficulty in using the graphic to make decisions. Some difficulties arose from issues interpreting the legend based on language and measurement conventions.

Institutional Conservation and Carbon Emission Mitigation: County-Level Evidence from the Establishment of China’s National Parks
Weather, Climate, and Society

National parks reduce emissions in China. The establishment of national parks in China is found to reduce county-level carbon emission intensity by fostering tertiary sector growth in low-carbon, high-value-added green services, such as ecotourism and cultural experiences, and by enhancing forest ecological benefits such as carbon sequestration.

How Have the Intrinsic Characteristics and Application of the Enhanced Fujita Scale Contributed to a Decreased Frequency of Intense Tornadoes in the United States?
Journal of Applied Meteorology and Climatology

Intense tornado “drought” a product of the EF scale. In recent years (2014–23), fewer tornadoes have been rated at significant levels (EF3+) than in the past. This study adds evidence that this decrease is driven by differences in design and use between the old Fujita (F) and current Enhanced Fujita (EF) intensity scales, not by weather changes. The authors call for a reevaluation of the tornado record in the United States to create a more consistent record.

Water-Constrained Revegetation Potential in China’s Drylands Using a Multi-Data Ensemble Approach
Journal of Hydrometeorology

Determining water budgets for reforestation. Reforestation is an important natural form of carbon sequestration. The authors analyze tradeoffs between water conservation and reforestation in China, finding that in water-scarce areas, even using less water-intensive vegetation does not offset the water consumed. However, in areas of water surplus it is feasible to plant vegetation that consumes more water.

Climate Change and Outdoor Sport in Chile: A Review of Impacts, Risks, and Adaptation
Weather, Climate, and Society

Climate change impacts Chilean sports across seasons and categories. A literature review finds that among Chilean sports, “warm-season activities are increasingly constrained by heat stress and wildfire smoke; winter sports face shorter and less reliable seasons under declining snowpack; high-Andean sports are affected by glacier retreat, permafrost thaw, and route instability; and water-based sports are influenced by altered hydrology, atmospheric river events, storm surges, and coastal erosion.”

A Multi-model Perspective of Droughts in Future Climate and Implications for Irrigation in Malawi
Journal of Hydrometeorology

Climate change will increase irrigation challenges in Malawi. In Malawian river basins, there is very little buffer between the onset of meteorological drought and the diminishing of stream flow, this finds a multi-model study. This means water demand for irrigation often coincides with reduced water availability, a situation likely to worsen with climate change.

You can view all research published in AMS Journals at journals.ametsoc.org.


About the American Meteorological Society

The American Meteorological Society advances the atmospheric and related sciences, technologies, applications, and services for the benefit of society. Founded in 1919, AMS has a membership of around 12,000 professionals, students, and weather enthusiasts. AMS publishes 12 atmospheric and related oceanic and hydrologic science journals; hosts more than 12 conferences annually; and offers numerous programs and services. Visit us at www.ametsoc.org/.

About AMS Journals

The American Meteorological Society continuously publishes research on climate, weather, and water in its 12 journals. Some AMS journals are open access. Media login credentials are available for subscription journals. Journals include the Bulletin of the American Meteorological Society, Weather, Climate, and Society, the Journal of Climate, and Monthly Weather Review.

 

Lower-income, more diverse neighborhoods face highest multi-hazard climate risks, PSU study finds




Portland State University
Map analysis of hazard risks in Portland, Oregon 

image: 

Maps showing census block groups (left) and census tracts (right) in Portland facing varying risk from hazards, including extreme heat, flooding, wildfires, and landslides.

view more 

Credit: Justin Huber and Heejun Chang | Portland State University





When it comes to compounding natural hazards like landslides, wildfires, flooding and extreme heat, where you live makes all the difference. New research from Portland State University underscores this disproportionate reality, finding that in Portland, the areas most vulnerable to multiple climate hazards are historically underinvested neighborhoods marked by lower median incomes, lower education levels and higher racial diversity.

The study — led by Justin Huber, a doctoral student in the Earth, Environment & Society program, and Heejun Chang, a professor of geography — mapped where hazards are most likely to hit across Portland and how those risks align with factors like income, education, tree cover, wetlands and access to critical services.

By examining social, ecological and technological variables, the researchers sought to better understand how natural hazards interact with the complex dynamics of urban systems.

"We're not just people experiencing natural hazards, but we're in a system that interacts with the natural hazards and the things we do also influence the potential for those hazards," Huber said. "If we cut down a bunch of trees, that may increase the likelihood of landslides but decrease the likelihood of forest fires." 

Looking at individual hazards, flood and heat risks were more common in flat East Portland, while wildfire and landslide risks were more concentrated in the hilly terrain of West Portland. 

When these threats overlap, though, East Portland emerges as the city's multi-hazard hotspot, with neighborhoods along I-205 scoring among the highest for all four hazard risks. These areas are home to a higher proportion of non-white residents, lower median incomes and lower educational attainment, according to the study. The inverse is often true of Central and West Portland, where overall hazard exposure is much lower.

The high-risk areas are the same areas that have dealt with chronic underinvestment, the researchers said. Most of East Portland near present-day I-205 was labeled "definitely declining" — the second lowest rating — on the 1938 Home Owners' Loan Corporation maps that institutionalized redlining. In recent decades, as historically redlined but lower-risk neighborhoods in North/Northeast Portland underwent redevelopment, rising housing costs forced residents out to the more hazard-prone neighborhoods of East Portland.

"It's important to see how people move when these other two things — ecological and technological variables — change," Huber said. "You don't want to inadvertently cause people to move."

Key findings from the study include:

  • Roughly 5% of Portland residents live in neighborhoods facing the highest risk from three or more hazards. 

  • Compared with the citywide average, those 18 census block groups — neighborhood-level areas typically home to 600 to 3,000 residents each — have lower median incomes, lower educational attainment, fewer wetlands and longer distances to hospitals.

  • Areas with overlapping high hazard potential saw their median income grow the slowest over a 10-year period. They also had lower than average percent of residents with at least a bachelor's degree and higher than average percent of residents with a disability.

"Even though the city is trying to do some equity work, we have a long way to go," Chang said. "These hazard hotspots are the areas where the city can do better in creating more green and blue spaces and invest in infrastructure to make them more resilient to future hazards." 

The researchers say the study can be replicated in other cities facing similar hazards from climate change and land development — not only for city managers to be better informed, but for residents living in those high-risk areas to be educated and empowered to advocate for better environmental infrastructure. 

Accounting for overlapping hazards can dramatically improve emergency planning, the researchers said. For example, cities could use multi-hazard maps to better position evacuation routes and ensure critical infrastructure like hospitals is built in lower-risk areas so they can remain operational during a disaster. 

Natural features can also serve as buffers. Expanding wetlands, or blue spaces, for example, helps absorb floodwaters, cools surrounding areas and blocks fires from moving across the landscape. Chang pointed to the Foster Floodplain Natural Area in Portland's Lents neighborhood, completed in 2012, as a good example of the city buying property from more than 60 homeowners to let Johnson Creek safely overflow and store floodwaters.

"Those are the kinds of efforts that this study can inform," Chang said. 

The findings were published in the journal Natural Hazards. Funding for the study came from the National Science Foundation research traineeship at PSU focusing on the causes, consequences of and community responses to cascading natural hazards.

 

Last common ancestor, no matter its feet, could have been a vertical climber



Study shows monkeys’ feet make them as adept as chimps at climbing trees




Ohio State University





COLUMBUS, Ohio – New research suggests that no matter what we eventually determine the last common ancestor of humans and chimpanzees to be, we’ll learn it was a primate that climbed trees.

Humans and chimpanzees began their separate evolutionary paths between 6 and 7 million years ago when they split from the last common ancestor (LCA) they shared. Debate about the LCA hinges in part on the tree-dwelling environment from which humans emerged – which involved living among the high-up horizontal branches or being able to get there from the ground, or, more likely, both.

Chimpanzees have ankle flexion that makes them skilled tree trunk climbers, but monkeys have been thought to navigate trees with their arms – which would influence what kind of ancestor we’re looking for, one that climbed up trunks or lived in treetops full time.

Video evidence from West Africa suggests there may be no such distinction, at least based on foot structure: Researchers from The Ohio State University observed and confirmed with measurements that wild sooty mangabey monkeys, known to have feet that lack chimps’ versatile ankles, display foot bone flexibility that facilitates vertical climbing up skinny tree trunks to hide, forage or sleep.

“People are making behavioral inferences from fossils, and some say a monkey can’t vertically climb as well as an ape can,” said first study author Luke Fannin, assistant professor of anthropology at Ohio State. “We’re saying there’s a functional equivalence here. So you can’t rule out vertical climbing just because something doesn’t have a chimpanzee-like foot.”

The research appears this week in Proceedings of the National Academy of Sciences.

Identifying the last common ancestor is considered key to helping us understand what led to bipedalism, which is done habitually only by humans. We know we’re apes, but this study makes the point that even if the ancestor had a more monkey-like foot morphology, it could still climb like an ape.

“Part of paleoanthropology is understanding how our evolution happened, and it’s often through the hallmark of how we move because modern humans move quite differently than our cousins, the chimpanzees, do, and they’re the living primate we’re most closely related to,” Fannin said. “And we’re trying to understand why that is.”

Fannin recorded the videos of mangabeys in the wild at the Taï Forest Monkey Project field station in Ivory Coast that is co-directed by W. Scott McGraw, professor and chair of anthropology at Ohio State and senior author of the paper.

“The great thing about having the video is that it allows us to capture exactly what the monkey is doing in a high-resolution manner. So we can actually say how the joint is loaded. Before, we had hunches, but in this way, it’s far more precise,” McGraw said.

The chimpanzee ankle can flex upward at a 45-degree angle during a tree climb, compared to most human ankles’ capacity to flex about 20 degrees. Fannin found that the mangabey foot achieves a 46-degree flex in its midfoot during a vertical climb.

This poses a challenge to differing schools of thought about how the LCA moved and the kind of foot it needed to get around a forest environment – theories differ on whether the foot structure was required to be more like a chimp’s or a monkey’s.

“What’s neat about this paper is it adds clarity, but it also makes the broader picture more fuzzy,” McGraw said. “Because this notion that you have to have a foot like an advanced ape to vertically climb, which is a difficult task, is not true. You’ve got a bunch of monkeys that aren’t extinct – and which can be filmed – that are very competent at performing a biomechanically challenging behavior right now in a forest in West Africa.

“The videos that Luke made in Taï are particularly important because they provide some of the first kinematic documentation of a locomotor behavior in a monkey that has largely been unrecognized or underappreciated.”

There are modern hunter-gatherers and human foragers who are competent vertical climbers as well, a skill believed to be associated with flexibility in their ligaments, tendons and muscles rather than their foot bones.

But Fannin and McGraw note that though modern humans may be defined by walking on two feet, we are focused on ascent, on reaching new heights in a literal sense – a sign that our arboreality, that ancestral connection to trees, is not just anatomical but also a behavioral hallmark.

“Arboreality is fundamental to understanding primates – including ourselves – because it has shaped our body to a large degree: hands and feet, wrists and ankles, nails instead of claws, etc.,” McGraw said.

Added Fannin, “Regardless of where you’re starting from, which we don’t know yet, vertical climbing is universal and the anatomy is going to perform that behavior. So I think that to get at the question of a monkey-like or ape-like last common ancestor, we need more fossils.”

This work was supported by Dartmouth College, the Explorer’s Club, the U.S. National Science Foundation, the Emory National Primate Research Center, the Primate Society of Great Britain and a Schmidt Sciences Postdoctoral Fellowship.

Former Ohio State undergraduate Carmen Pape was also a co-author.

#Journal

Sunday, August 16, 2026

The Encino Vista Project: A Case Study of the Need for a Cost/Benefit Framework in Fuels Reduction Project Analysis



 August 14, 2026

Intentionally burned in 2014 and now mastication, cutting and pile burning are planned – N of FR 76 near FR 171  Photo:  Public Journal.

Why a Comprehensive Cost/Benefit Framework is Needed

In April of 2022, the largest wildfire in New Mexico history, the Hermits Peak/Calf Canyon Fire, was ignited by two separate escaped prescribed burns during implementation of a U.S. Forest Service fuels reduction project. One prescribed burn escape was ignited by a broadcast burn, and the other by spreading fire from smoldering slash piles. This project, called the Gallinas Municipal Watershed Wildland Urban Interface Project, was located on the far east side of the Santa Fe National Forest.

The two escaped burns ran side-by-side at first, and then merged into a massive conflagration that ultimately burned through three counties, destroyed hundreds of homes, and forever altered a traditional community’s way of life. The severe post-fire flooding killed three people. Since then, ash by-products and heavy metals associated with fire retardants used to fight the fire have been found in local wells, streams and watersheds. Almost 84,000 acres, or 130 square miles, of the 341,471-acre fire burned at high severity, which meant most trees were killed in an area where post-fire conifer regeneration is often delayed or may not occur at all. This fire was truly an agency-initiated disaster, and it has cost over 5 billion dollars.

Following the fires, the Forest Service completed an analysis of each fire, focusing on a number of operational shortcomings and inadequate agency capacity. The agency implemented new operational procedures and safeguards intended to reduce the risk of prescribed burn escapes. However, no meaningful analysis was done to determine to what extent the new procedures and safeguards would actually reduce burn escapes, especially in dry forests.

The 2006 Gallinas Municipal Watershed Project decision notice acknowledged the need to consider project risks, costs, and benefits more directly than was required, due to the potential for escaped prescribed burns. However, it did not employ a comprehensive cost/benefit framework, one that systematically and comprehensively assesses the ecological, social, and economic costs and risks of a proposed project against its expected benefits. Such an approach was later recommended in the Forest Service’s 2013 framework for improving ecosystem resiliency in southwestern dry forests, which identified a need for an “assessment of ecological, economic, and social benefits and costs of different restoration methodologies and implementation practices.”

Analyzing the Gallinas Municipal Watershed Project within a systematic and comprehensive cost/benefit framework might have led to a different project design. The analysis might have concluded that spring prescribed burning was unjustified under the dry, windy conditions that often occur in the Santa Fe National Forest, that reducing canopy cover to the proposed extent created unacceptable ecological and wildfire risks, or that the volume of slash generated by the project could not be safely burned.

Such a framework might have guided the determination of the optimal timing, size, and frequency of treatments, as well as conditions under which to implement them. The project might have been designed to meet the objective of maintaining ecosystem integrity by supporting the ecosystem’s capacity to retain moisture, while avoiding treatments that degrade soils and waterways, damage trees and understory vegetation, and disrupt wildlife habitat.

The Forest Service currently utilizes an “effects analysis” which identifies and evaluates the reasonably foreseeable beneficial and adverse effects of a project. Occasionally, the language of weighing costs and benefits is included. However, this type of analysis does not provide a systematic and comprehensive framework for meaningfully weighing those effects against one another to determine whether the expected benefits justify the ecological, social, and economic costs and risks of the proposed action. Meaningful weighing requires first sufficiently determining the magnitude and probability of the expected benefits, costs, and risks.

Throughout the project design and analysis process, the central question should always be: given the magnitude and probability of the presumed benefits and the potential harms, is each particular action justified? And if so, under what conditions? For example, at what time of year, and under what weather, vegetation, or soil conditions?

A comprehensive cost/benefit framework should inform every stage of project planning and analysis — from gathering reliable information about existing conditions, to evaluating ecological, social, and economic consequences, to monitoring outcomes, and to incorporating what is learned into future management decisions. Such a framework naturally creates a discipline of thinking that questions assumptions and holistically evaluates the full range of consequences of proposed project actions, recognizing that these factors interact in complex ways and can create cascading effects.

The Encino Vista Project: A Case Study

The Encino Vista Landscape Restoration Project, located in the Jemez Mountains on the west side of the Santa Fe National Forest and northwest of Los Alamos, was proposed by the Forest Service in 2019. The project analysis was delayed, so the final decision wasn’t released until 2025. The project includes 26,700 acres of “thinning” (cutting of trees up to 24 inches in diameter), 7,200 acres of commercial logging that includes effective clearcut logging, and 74,700 acres of prescribed burning.

Traditional communities, similar to those surrounding the Gallinas Municipal Watershed Project area, are located nearby. The project proposal was highly controversial to both locals and to conservationists interested in protecting the Santa Fe National Forest. According to long-time Jemez Mountains conservationist and president of the Santa Fe Forest Coalition, Sam Hitt:

The accessible terrain [of the project area] has been repeatedly logged and nearly all the large trees have been felled for saw timber. For decades, the area was situated halfway between two old-growth timber mills (in Cuba and Espanola). There are over 100 miles of old logging roads, many of which bleed sediment into nearby streams. Now they [the Forest Service] want to cut the mature timber and open/reconstruct the road network that is blending back into the landscape. In other words, they are trying to maintain the area as a timber plantation instead of allowing a functional forest to develop.

Additionally, the project area is heavily grazed by cows, so the natural understory is largely denuded or shifted to uncharacteristic or invasive plants, some of which are highly flammable. But the area is still viable enough to recover to at least a version of the majestic forest it once was, adapted to current climatic conditions. This would require careful, ecologically sound, and holistic management that considers the forest as worth preserving as an intact ecosystem, while also considering the needs of local communities.

The Encino Vista Project is very similar to a series of previously approved Santa Fe National Forest projects — a formulaic fuels reduction plan based on a specific forest management strategy that has resulted in substantial ecological damage and sometimes disasters for communities. The following examples illustrate several of the areas in which applying a comprehensive cost/benefit framework during project planning and analysis could have better achieved the Forest Service’s stated objectives of restoring forest health, reducing the risk of uncharacteristically severe wildfire, improving watershed health, and protecting wildlife habitat.

Mexican Spotted Owls  

The Encino Vista Project area contains significant populations of two threatened or endangered species: the Mexican spotted owl and the Jemez Mountains salamander. The presence of these populations in this area is indicative of ecosystem integrity.

The Endangered Species Act requires that the Forest Service promote recovery of listed species by managing habitats, avoiding actions that jeopardize listed species, and consulting proactively with federal wildlife agencies. In order to know if populations are recovering, the agency must understand current population trends. Decades after the Mexican spotted owl was listed, the Forest Service still does not have region-wide population data. The Forest Service, along with the U.S. Fish & Wildlife Service, has stated that they need more data to understand the impacts of fuels treatments on owls. Yet at the same time the agencies seem to be ignoring data from the 4FRI project in Arizona suggesting that thinning and burning have significant adverse effects on the owls. Without region-wide population data, there is no way to determine whether the reductions in canopy cover are helping or hindering owl recovery.

Even though the Forest Service hasn’t yet complied with existing Endangered Species Act regulations, the Encino Vista Project decision allows for fuels reduction treatments in owl habitat. In a cost/benefit analysis framework, the agency would ask, after obtaining reliable baseline data: do the anticipated benefits of the intended fuels treatments outweigh potential damage to Mexican spotted owl populations and habitat?

Meaningful cost/benefit analysis requires reliable baseline information about the condition of the resources being managed.

Escaped Prescribed Burns

During the past quarter century, the majority of acres burned by wildfire in and from the Santa Fe National Forest were ignited by land management agency intentional burns that escaped control. This included substantial high-severity fire. This fire history was not meaningfully considered in the Encino Vista Project analysis. It should be fully acknowledged that prescribed burning creates significant risk of igniting major wildfires, even with improved operational procedures and efforts to address agency capacity. A comprehensive cost/benefit framework would quantify the acres that have burned due to escaped intentional fires, and would weigh the risks against realistically determined estimates of the high-severity wildfire reduction expected from the proposed treatments. As with the case of the Gallinas Municipal Watershed Project analysis, the discipline of balancing costs with benefits might have led to the development of a much less risky project design.

A systematic and comprehensive cost/benefit framework requires that agencies learn from past project outcomes and weigh those lessons against presumed benefits in current project design and analysis.

Slash Piles

A multitude of piles of slash from logging and thinning operations exist across the Santa Fe National Forest, some from many years ago, creating an ongoing fire hazard. The recent McCauley Springs Fire in the Jemez Mountains was initially spread by logging slash, and the fire came close to igniting slash piles. The 2022 Calf Canyon and Cerro Pelado fires were ignited due to “sleeper” slash piles, which can smolder for months deep within the piles or even underground, sometimes underneath snow.

Once trees are cut, slash must be managed. Managing slash piles carries significant risk. The burning of slash piles tends to leave damaged soils. The Encino Vista Project analysis should have quantified the existing slash piles, given that the project could produce on the order of 718,000 additional slash piles to burn (calculated at 20 piles per acre cut). It should be considered to what extent the risks and costs of creating so many slash piles that must be burned would be justified by the demonstrable benefits of wildfire mitigation and increased forest health.

Such an analysis might lead to substantially reducing the amount of tree cutting and the resulting number of slash piles, and requiring existing slash piles to be burned before new ones are created. More stringent guidelines might also be considered to prevent pile burn ash from leaching into waterways.

A cost/benefit framework requires that existing conditions be weighed when determining whether additional project impacts are justified by their presumed benefits.

Tracks from logging equipment that have damaged the soil in the Encino Vista Project area. 96 Fuelwood area.  Photo:  Sam Hitt.

“Healthy” Forests vs. Wildfire Risk Reduction

The Encino Vista Project’s stated purpose is to both reduce the risk of high-severity fire and to increase forest health. If the primary means of reducing fire risk is intensive logging and thinning, followed by intentional burning, then the extent to which such treatments are executed must be reconciled with the requirements for ecosystem integrity. Especially in dry forests, overly opening up tree canopies can set off a cascade of ecological changes that degrade ecosystems. Given the Santa Fe National Forest’s history of ecological damage from fuels reduction treatments, the boundary between potential fire mitigation and ecosystem damage appears to be repeatedly crossed. Many treated areas have few trees left standing, damaged soils, and invasive weeds and uncharacteristic shrubs replacing the prior more natural understories.

Determining the optimal balance between treating forest ecosystems and allowing them to thin themselves naturally is complex and will require much more ecological research. Within the Encino Vista Project analysis, the Forest Service considers impacts to soils, vegetation, and wildlife habitats in a limited way, but does not comprehensively consider the tradeoffs between potential ecosystem damage from the treatments and potentially decreasing high-severity fire,

A cost/benefit framework requires weighing a range of interrelated effects within a complex system.

The question should be asked: is potentially creating degraded and dried-out ecosystems, possibly in perpetuity, from aggressively and repeatedly cutting and burning justifiable for the amount of reduction of high-severity fire that might be achieved? Or would a much more light-handed approach provide a better balance of effects?

Economic cost/benefit analysis

Environmental law does not require an economic cost/benefit analysis as part of Forest Service project analysis. But given the currently more limited funding allocated to the Forest Service, shouldn’t the financial costs relative to resource benefits be at least estimated so funds could be spent effectively?

Within a cost/benefit framework, the cost of implementing fuels reduction treatments relative to the cost savings from the reduction of high-severity fire should be considered. Logging, thinning, and prescribed burning carry a substantial cost per acre to implement (with thinning estimated by the Forest Service to be $3,428 per acre), so it should be determined whether, in any particular context, the potential outcomes justify the expense. In 2017, Forest Service researchers were the lead authors of a paper focused on the Sierra National Forest that weighed the financial costs and benefits of fuels reduction treatments. The paper concluded: “Modeling results generally confirmed that fire-treatment encounters are rare, such that median suppression cost savings are zero, but in extreme years, savings can more than offset upfront investments.” That kind of analysis should be conducted for a variety of forest types. The costs of building and maintaining roads to access treatment areas should also be included in estimates of project financial costs. The costs of timber sales should be included. According to Forest Service analyses, logging sales often result in substantial net financial losses. Additionally, the broader costs of carbon emissions from project activities should be considered.

Such an analysis would include considering the costs of managing project risk outcomes, such as wildfires ignited by escaped prescribed burns. Costs outside the Forest Service budget should also be considered, including local residents’ costs resulting from agency-caused wildfires — such as medical costs from smoke exposure and the costs of potentially compensating residents if their homes are burned and/or their property damaged.

The optimal allocation of limited economic resources is an important aspect of considering a project within a cost/benefit framework.

Conclusion

Currently, the Forest Service claims it is not explicitly required by environmental law to perform any type of cost/benefit analysis of fuels treatment projects despite such projects potentially impacting forests for generations and impacting communities in a multitude of ways. The Encino Vista Project decision does not even sufficiently comply with existing environmental law. Three conservation organizations, WildEarth Guardians, the Santa Fe Forest Coalition, and The Forest Advocate have submitted to the Forest Service a notice of intent to sue concerning the Encino Vista Project decision, and also concerning the 2022 Santa Fe National Forest plan revision that provided the overall parameters for the Encino Vista Project logging and other fuels treatments. The purpose of the legal challenge is so that the analytical basis upon which the project decision and forest plan revision were made will be strengthened, and both will be reconsidered.

Given the stresses forest ecosystems are undergoing in a warming and drying climate, it is imperative that the agency genuinely weigh the costs and benefits of forest management actions to limit the damage they are causing. This is not over-analysis – it’s the rationality and due diligence required for managing our public lands. Whether or not environmental law currently requires a systematic and comprehensive cost/benefit framework, the potential consequences of fuels reduction projects are so profound that such a framework is essential for guiding responsible forest management and preserving our irreplaceable climate-transitioning forests – while also protecting communities.

Sarah Hyden has been working to protect the Santa Fe National Forest for well over a decade. She was a co-founder of the Santa Fe Forest Coalition and was the WildEarth Guardians’ Santa Fe National Forest Advocate. In 2019, she co-founded The Forest Advocate, a not-for-profit organization dedicated to protection of the Santa Fe National Forest and all western forests. The Forest Advocate maintains an active website that publishes forest advocacy news and resources — theforestadvocate.org.