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Humans Blamed for Starting Most Wildfires in the U.S.

Five out of every six wildfires battled in the Lower 48 were started by a human, new research shows.

100 Days of Climate: Week 6

Over Trump's first 100 days, we're going to show what science tells us about our warming world.

The U.S. is Poised to Set a Record-Setting Record

Record February heat is kickstarting spring from the Southeast to the Midwest.

Senate Mulls ‘Kill Switch’ for Obama Methane Rule

Congress could use a rarely-invoked law to permanently kill an Obama-era methane emissions regulation.

Wind Briefly Sets Record as Source for Electricity in U.S.

For the first time in North America, wind powered more than 50 percent of electric demand on Feb. 12.

America’s Climate Pollution is Falling, EPA Report Says

Greenhouse gas emissions fell in 2015, reducing America’s overall climate pollution to below 1994 levels.

Sea Ice Hits Record Lows at Both Poles

Warm weather could send Arctic sea ice to a record low winter peak as Antarctic sea ice sets an all-time record low.

Dakota Pipeline Greenlighted As Fossil Fuels Move to Fore

The Army Corps of Engineers has approved an easement that allows the final link in the Dakota Access Pipeline.

More Snowfall Records, More Recently

In parts of the U.S., heavy snow records are being set, even in a warming world.

Snow Cover on the Decline in North America

Snow cover in North America is on the decline in part due to climate change.

Snowfall Totals Are Changing Across the U.S.

See how snowfall is trending in these U.S. cities.

Food Security, Forests At Risk Under Trump’s USDA

U.S. forest health and the ability of farmers to respond to climate change are at risk under Trump's USDA.

Warming-Driven Heat Waves Could Tax U.S. Electrical Grid

More frequent heat waves will drive up electricity demand, potentially costing billions in infrastructure upgrades.

The West’s Largest Coal Plant May Close. It’s a Big Deal.

The West's largest coal-fired power plant may close — a symbolic blow to coal as America's chief source of electricity.

The Doomsday Clock Just Moved Closer to Midnight

Scientists have changed the doomsday clock time due to climate change and leaders' disregard for facts.

Rains From Thunderstorms Rising Rapidly in Europe, Asia

Short-lived, localized downpours linked to global warming are on the rise across Europe and Asia.

Cold Getting Less Extreme

Extreme cold is decreasing, as the lowest temperature observed each year is trending upward.

How Close Is 1.5°C? Depends When You Measure From

A new study calculates that temperatures have warmed at least 1°C since the early 1880s.

Trump Revives Keystone XL, Dakota Access Pipelines

President Trump has signed executive orders advancing two controversial oil pipelines.

Scientists Are Reminding the World That Science Matters

On the day of Trump's inauguration, scientists are tweeting why science matters more than ever.

Gallery

Spring Temperature Trends Nationwide, spring has warmed an average of 1.9°F since 1970.

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