Permafrost temperatures with depth in a borehole in East Teshekpuk, Alaska (US) taken in 1989, 1995, and 2001 showing significant temperature increase in the upper 40 meters over time.
Click on image for full size
USGS
Global Warming and Thawing Permafrost
This page is not yet developed at the beginner level. Please check back for updates or click on the "Intermediate" button above.
You might also be interested in:

Looking for online content that can be used for a climate change education course or module? Pages linked below can be used to support an introductory climate change education for either a unit or a full
...more
Polar exploration includes the exploration of the Arctic and the Antarctic. The Arctic is the area around the Earth's north pole. Antarctica is a continent that surrounds the South Pole. When you think
...more
What Will You Find There? If you travel to the South Pole, you will find the continent of Antarctica surrounded by the Southern Ocean. The geographic South Pole is marked by a large sign that scientists
...more
Antarctica is the coldest, windiest, and driest continent on Earth. It is about one and a half times the size of the United States. Almost all of Antarctica is covered with a thick layer of ice called
...more
In the Arctic, you will find the Arctic Ocean surrounded by the continents of Europe, Asia, and North America. You will find the geographic North Pole and the magnetic North Pole there; both are in the
...more
Polar bears live in one of our planet’s most extreme environments, the Arctic . They thrive in the freezing cold. But because of global warming, polar bears might be in trouble. Scientists are studying
...more
Sea ice is frozen seawater. It floats on the oceans that are in Earth's polar regions. The salt in the seawater does not freeze. Very salty water gets trapped in the sea ice when it forms. The pockets
...more