Environment

Risk of ozone loss increases over the United States in summer

Risk of ozone loss increases over the United States in summer

A new study out of Harvard University reveals that the protective stratospheric ozone layer above the central United States is vulnerable to erosion during...
We're on the brink of mass extinction

We’re on the brink of mass extinction

-- but there’s still time to pull back. Imagine being a scuba diver and leaving your oxygen tank behind you on a dive. Or a...
Human activity has polluted European air for 2,000 years

Human activity has polluted European air for 2,000 years

A new study combining European ice core data and historical records of the infamous Black Death pandemic of 1349-1353 shows metal mining and smelting...
Big Fish in Big Trouble in European Water

Big Fish in Big Trouble in European Water

An international team of scientists led by the University of Aberdeen have discovered that large fish, which include many of the sharks, rays and...
Vegetation can alter climate by up to 30 percent

Vegetation can alter climate by up to 30 percent

A new Columbia Engineering study, led by Pierre Gentine, associate professor of earth and environmental engineering, analyzes global satellite observations and shows that vegetation...
Exposure to Air Pollution Could Increase the Risk of Obesity

Exposure to Air Pollution Could Increase the Risk of Obesity

Laboratory rats that breathed Beijing’s highly polluted air gained weight and experienced cardio-respiratory and metabolic dysfunctions after just three to eight weeks of exposure. To...
Climate Change May Ruin Your Sleep

Climate Change May Ruin Your Sleep

Climate change may keep you awake—and not just metaphorically. Nights that are warmer than normal can harm human sleep, researchers show in a new paper,...
Targeted conservation could protect more of Earth's biodiversity

Targeted conservation could protect more of Earth’s biodiversity

A new study finds that major gains in global biodiversity can be achieved if an additional 5% of land is set aside to protect...
US nuclear regulators greatly underestimate potential for nuclear disaster

US nuclear regulators greatly underestimate potential for nuclear disaster

The U.S. Nuclear Regulatory Commission (NRC) relied on faulty analysis to justify its refusal to adopt a critical measure for protecting Americans from the...
Diesel vehicles produce 50 percent more nitrogen oxide than originally thought

Diesel vehicles produce 50 percent more nitrogen oxide than originally thought

A study, published in Nature, has shown that laboratory tests of nitrogen oxide emissions from diesel vehicles significantly underestimate the real-world emissions by as much...