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Wildfire smoke rises near Prince Albert, Sask., in May 2021, where a fast-moving wildfire led local officials to declare a state of emergency. THE CANADIAN PRESS/Kayle Neis

How wildfires affect climate change — and vice versa

Recent wildfire seasons have been worsened by climate change. But wildfires also lead to additional climate warming when they release carbon dioxide to the atmosphere.
Permafrost is thawing across the Arctic, releasing microbes and organic materials that have been trapped in the frozen ground for thousands of years. NOAA via Wikimedia Commons

Thawing permafrost is full of ice-forming particles that could get into atmosphere

New research shows that permafrost contains huge amounts of particles that make it easier for cloud moisture to freeze. Thawing permafrost is releasing these ice-nucleating particles.
Brazil, home to the Amazon, is one of just five ‘mega-wilderness’ countries. CIFOR

Earth’s wilderness is vanishing, and just a handful of nations can save it

More than two-thirds of Earth’s remaining wilderness is in the hands of just five countries, according to a new global map. A concerted conservation effort is needed to save our last wild places.
2016’s warm winter meant not enough snow for the start of the Iditarod sled dog race in Anchorage, so it was brought by train from 360 miles north. AP/Rachel D'Oro

In Alaska, everyone’s grappling with climate change

For everyone from traditional hunters to the military, the National Park Service to the oil industry, climate change is the new reality in Alaska. Government, residents and businesses are all trying to adapt.

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