The Zimovs take some permafrost depth readings.
© Charlotte Wrigley
The Zimovs want to restore the prehistoric 'mammoth steppe' ecosystem and see if it slows down – or even reverses – melting permafrost.
People inspect the damage following a tsunami at a village in Sumur, Indonesia, on Dec. 24, 2018.
(AP Photo/Fauzy Chaniago)
Massive landslides can trigger destructive and deadly tsunamis, and climate change could make them worse.
F-Focus by Mati Kose / shutterstock
Peatlands will become a major source of greenhouse gases as the permafrost thaws.
A wildfire burns outside Fairbanks, Alaska, after a lightning strike.
Arctic heat waves were once rare and unusual events. But as their intensity and frequency increase with climate change, their fallout could affect the north — and the planet — for decades to come.
Permafrost near Norilsk, Russia.
Romzes333 / shutterstock
Climate change is thawing permafrost and increasing the risk of these accidents, and the region has fewer of the bacteria that can 'clean up' oil spills.
This Arctic heat wave has been unusually long-lived. The darkest reds on this map of the Arctic are areas that were more than 14 degrees Fahrenheit warmer in the spring of 2020 compared to the recent 15-year average.
Joshua Stevens/NASA Earth Observatory
The Arctic is warming about twice as fast as the planet as a whole, with serious consequences. Scientists have been warning about this for decades.
Temperature anomalies from March 19 to June 20 2020. Red colors depict areas that were hotter than average for the same period from 2003-2018; blues were colder than average.
Models have predicted for some time that with every degree of global warming, the Arctic will see double or more.
The wet and low-lying East Siberian Arctic is likely to be a major methane source in the coming decades.
A soldier stands guard at the damaged entrance to Tyndall Air Force Base in Panama City, Florida, Oct. 11, 2018, after Hurricane Michael.
AP Photo/David Goldman
US military leaders have to plan for operations all over the world, so they can't afford to ignore climate change or debate its causes.
Some lakes in the Arctic are expanding and others are disappearing as permafrost thaws.
This lake north of Inuvik, N.W.T., is expanding as the ice wedges (darker lines leading away from the lake) around this lake melt and the ground subsides.
Hundreds of thousands of lakes, rivers and streams in the Arctic exist only because of the permafrost that lies beneath them. The warming Arctic threatens to change that.
Rivers of melted ice on a Western Greenland ice sheet drain into the ocean beneath the ice.
Photo via Caspar Haarløv/AP
Studies show that the Arctic is heating up twice as fast as the rest of the planet.
The Mackenzie River carves its way through the permafrost tundra of northern Canada.
inEthos Design / shutterstock
Climate change has caused a 60-fold increase in active landslides on one Canadian Arctic island.
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.
Ahu on Easter Island. Bryan Busovicki/Shutterstock.com
While extreme weather conditions represent a considerable challenge globally, some communities have been living with (and adapting to) similar events for centuries.
Freshwater cypress swamp, First Landing State Park, Va.
VA State Parks
Wetlands are some of the world's most undervalued weapons against climate change. They store huge quantities of carbon – but without better protection, many could soon be drained or paved over.
A 20-year-old experiment is testing whether filling the Arctic tundra with animals could keep carbon trapped in the ground.
Scientists on Arctic sea ice in the Chukchi Sea, surrounded by melt ponds, July 4, 2010.
Climate change is transforming the Arctic, with impacts on the rest of the planet. A geographer explains why he once doubted that human actions were causing such shifts, and what changed his mind.
Dan Bach Kristensen / shutterstock
The ice sheet is melting and permafrost is thawing. What's happening in Greenland will speed up climate change across the world.
Best-case scenario, how much are we locked into?
Set aside the politics. If by some miracle we turned off carbon emissions immediately, how would the climate respond?
The warming global climate is causing fundamental changes to the carbon cycle in northern parts of the world.
Global warming is changing the movement of carbon within northern ecosystems to the point where the Arctic could become a net source, rather than sink, of greenhouse gas emissions.