As extreme fires transform Alaska's boreal forest, aspen and birch put a brake on carbon loss and how fast the forest burns

A new study finds deciduous trees are increasingly dominant after severe fires in the boreal forest, and that's having some unexpected impacts.

Xanthe Walker, Assistant Research Professor, Northern Arizona University • conversation
April 15, 2021 • ~8 min

The Arctic hasn't been this warm for 3 million years – and that foreshadows big changes for the rest of the planet

Extreme shrinkage of summer sea ice is just the latest evidence of rapid Arctic warming – and what happens in the Arctic doesn't stay there.

Steve Petsch, Associate Professor of Geosciences, University of Massachusetts Amherst • conversation
Sept. 30, 2020 • ~9 min

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