Chris Mooney

A picture taken on February 10, 2017 shows big waves generated by the Nazare canyon as small ones break on Nazare's shore. The Nazare Canyon is an undersea geological formation just off the coast of Nazare, central Portugal, in the Eastern Atlantic Ocean.

Studies say Atlantic Ocean’s circulation hasn’t been this sluggish in 1,000 years

April 11, 2018 at 8:46 p.m.

The Atlantic Ocean circulation that carries warmth into the Northern Hemisphere's high latitudes is slowing down because of climate change, a team of scientists asserted Wednesday, suggesting one of the...

Lead scientist Erich Osterberg prepares to drill an ice core during the 2016 Greenland Traverse for Accumulation and Climate Studies. The study was based on refrozen meltwater preserved as ice layers in seven roughly 100-foot-long ice cores collected from the West Greenland ice sheet.

Greenland is melting faster than at any time in the past 450 years (at least)

March 28, 2018 at 9:48 p.m.

Scientists who crossed western Greenland with a fleet of snowmobiles, pulling up long cylinders of ice at camps a little more than a mile above sea level, have found evidence...

EPA Administrator Scott Pruitt gestures as he speaks to the media at the White House on June 2, 2017.

Scott Pruitt asks whether global warming is “necessarily is a bad thing”

February 7, 2018 at 4:19 p.m.

As head of the Environmental Protection Agency, Scott Pruitt has repeatedly questioned the scientific consensus that rising levels of carbon dioxide from human-fueled activity are warming the planet.

White House seeks 72 percent cut to clean energy research, underscoring administration’s preference for fossil fuels

January 31, 2018 at 4:18 p.m.

The Trump administration is poised to ask Congress for deep budget cuts to the Energy Department's renewable energy and energy efficiency programs, slashing them by 72 percent overall in fiscal...

2017 was among the planet’s hottest years on record, government scientists report

January 18, 2018 at 2:07 p.m.

2017 was among the hottest years ever recorded, government scientists reported Thursday.

Firefighters light backfires as they try ...

Smoke from wildfires may be surprisingly deadly, CSU researchers say

December 15, 2017 at 8:52 a.m.

Wildfires are devastating, but new research from Colorado State University suggests that air pollution from massive blazes may be one of their deadliest consequences.

The Belridge oil field in California. ...

One of the biggest U.S. oil fields turns to an unexpected power source: solar

December 2, 2017 at 6:21 p.m.

The Belridge oil field near Bakersfield, California, is one of the largest in the country. It has been producing oil for more than a century and last year produced around...

This Nov. 6, 2015, file photo shows a sign for TransCanada's Keystone pipeline facilities in Hardisty, Alberta, Canada. TransCanada Corp.鈥檚 Keystone pipeline leaked oil onto agricultural land in northeastern South Dakota, the company and state regulators said Thursday, Nov. 16, 2017, but state officials don鈥檛 believe the leak polluted any surface water bodies or drinking water systems.

Keystone pipeline spills 210,000 gallons of oil on eve of permitting decision for TransCanada

November 16, 2017 at 8:41 p.m.

The Keystone pipeline running from Canada across the Great Plains leaked Thursday morning, spilling about 5,000 barrels of oil - or 210,000 gallons - southeast of the small town of...

This NASA Earth Observatory image obtained ...

These are the melting glaciers that might someday drown your city, according to NASA

November 15, 2017 at 11:59 p.m.

New York City has plenty to worry about from sea level rise. But according to a new study by NASA researchers, it should worry specifically about two major glacier systems...

Administration report finds “no convincing alternative explanation” for climate change

November 3, 2017 at 10:06 p.m.

The Trump administration released a dire scientific report Friday calling human activity the dominant driver of global warming, a conclusion at odds with White House decisions to withdraw from a...

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