Human activities are affecting the migratory behaviours of some caribou populations.
(Mark Bradley/Parks Canada)
Genetic analysis of caribou populations reveals that some groups are genetically more predisposed to migrating than others. But human activities are affecting these behaviours.
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
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
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.
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.
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.
A 20-year-old experiment is testing whether filling the Arctic tundra with animals could keep carbon trapped in the ground.