Climate Change

As the pandemic rages, Department of Earth System Science Chair Eric Rignot defines what coronavirus means for climate change and those who study it.

The glaciers of Antarctica are melting at unprecedented rates, and a giant canyon in the continent's rocky underbelly could make matters much worse.

The ice sheet that sits atop Earth's deepest land canyon stands on shaky ground.

After an unusually warm summer, Greenland’s ice sheet has lost 600 billion tons of ice, according to recently released NASA data.

Irvine, Calif., March 23, 2020 – East Antarctica’s Denman Glacier has retreated 5 kilometers, nearly 3 miles, in the past 22 years, and researchers at the University of California, Irvine and NASA’s Jet Propulsion Laboratory are concerned that the shape of the ground surface beneath the ice sheet could make it even more susceptible to climate-driven collapse.

Irvine, Calif., March 18, 2020 – During the exceptionally warm Arctic summer of 2019, Greenland lost 600 billion tons of ice, enough to raise global sea levels by 2.2 millimeters in two months. On the opposite pole, Antarctica continued to lose mass in the Amundsen Sea Embayment and Antarctic Peninsula but saw some relief in the form of increased snowfall in Queen Maud Land, in the eastern part of the continent.

In 2019, record fires in the Amazon sparked international outrage and capped a decade that saw the rainforest lose an area the size of 8.4 million soccer fields to deforestation.

Greenland is losing ice mass seven times faster than in the 1990s, a pace that matches the Intergovernmental Panel on Climate Change’s high-end warming scenario – in which 400 million people would be exposed to coastal flooding by 2100, 40 million more than in the mid-range prediction.

California’s 2018 wildfire season was the deadliest and most destructive ever recorded: At least 100 people were killed, more than 24,000 structures were consumed and nearly 2 million acres were burned, according to the California Department of Forestry & Fire Protection.

A new study shows that the deepest point on land is under the Denman Glacier in East Antarctica. Glaciologists at the University of California, Irvine, were mapping the area only to find that the trough under the glacier went far deeper than they had imagined.

This ice-filled canyon reaches 3.5km (11,500ft) below sea level. Only in the ocean are the valleys deeper still. The discovery is illustrated in a new map of the White Continent that reveals the shape of the bedrock under the ice sheet in unprecedented detail.

Irvine, Calif., Dec. 12, 2019 – A University of California, Irvine-led team of glaciologists has unveiled the most accurate portrait yet of the contours of the land beneath Antarctica’s ice sheet – and, by doing so, has helped identify which regions of the continent are going to be more, or less, vulnerable to future climate warming.