By Bob Berwyn

The Arctic Ocean is mostly enclosed by the coldest parts of the Northern Hemisphere’s continents, ringed in by Siberia, Alaska and the Canadian Arctic, with only a small opening to the Pacific through the Bering Strait, and some narrow channels through the labyrinth of Canada’s Arctic archipelago.

By Bob Berwyn

When he saw the 75-mile wide ice front of the remote Thwaites Glacier looming out of the Amundsen Sea for the first time in 2019, ice researcher James Kirkham felt a sense of foreboding.

By Moriah McDonald

Although a new study of the mass of the Greenland Ice Sheet shows that previous research underestimated its ice loss by about 20 percent, which could lead to unexpected increases in sea level rise, it also held good news about the technological advancements used to make such measurements.

By Katie Surma

Humans are driving migratory animals—sea turtles, chimpanzees, lions and penguins, among dozens of other species—towards extinction, according to the most comprehensive assessment of migratory species ever carried out.

By Bob Berwyn

A new study affirms that a critical system of Atlantic Ocean currents that shunt warm and cold water between the poles is “on course” to a tipping point. If the Atlantic Meridional Overturning Circulation fails because of increasing freshwater inflows from melting ice sheets and rivers swelled by global warming, the authors said it would disrupt the climate globally, shifting Asian monsoon rainfall patterns and even reversing the rainy and dry seasons in the Amazon.

Interview by Steve Curwood, Living on Earth

From our collaborating partner “Living on Earth,” public radio’s environmental news magazine, an interview by host Steve Curwood with Elizabeth Rush, author of “The Quickening: Creation and Community at the Ends of the Earth.”

By ICN Staff

In 2023, clean energy progress and the horrors of a radically warming climate fought almost to a draw.

By Bob Berwyn

Research released this week raises new questions about how much more Earth may warm, or cool, if and when human carbon dioxide emissions zero out. Best estimates to date suggest that the global surface temperature would stabilize within a few decades, but the new paper in the journal Frontiers in Science examines the uncertainties around that conclusion, including how the planet’s key carbon dioxide-absorbing systems, like forests and oceans, will respond. 

By Nicholas Kusnetz

Earlier this month, environmental advocates in Alaska noticed that a new document had been quietly posted on the website of the federal agency that manages a huge swath of Arctic lands. 

By Lydia Larsen

The brisk increase in warming rates in the Arctic is bringing rapid shifts in range for plants and animals across the region’s tree of life. Researchers say those changes can lead species that normally wouldn’t encounter each other to interbreed, creating new hybrid populations.