The satellites found that the Earth's crust over Canada has not completed what scientists call the "post-glacial rebound." Now, it's clear that the ice age is still affecting the planet.
GRACE satellites have detected changes in the gravitational field over regions of Canada that can be attributed to the crust bouncing back after the melting of a glacier 20,000 years ago (Illustration: Science/ M Tamisiea)
CO2 burps from ocean to atmosphere at end of last ice age
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