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Despite Summer Snow, Greenland Is Still Melting

Snowy conditions have stymied summer melt on Greenland this year, but the vast ice sheet is still losing ice.

A Nebraska-Sized Area of Forest Disappeared in 2015

Nearly 50 million acres of forest disappeared worldwide in 2015, mainly in North America and the tropics.

Here’s How Much Arctic Sea Ice Has Melted Since the ‘80s

With weeks left in the melt season, Arctic sea ice area is already below the annual low of the 1980s.

South Miami Just Made a Huge Rooftop Solar Decision

South Miami, Fla., has become the first city outside of California to mandate solar panels on new homes.

Rising Seas Spark Tobacco-Style Lawsuits in California

California municipalities have filed first-of-their-kind lawsuits against fossil fuel giants over sea level rise.

Nights Are Getting Warmer Across the U.S.

Trends in nighttime temperatures are a symptom of a world warming from from climate change.

At Midway Point, 2017 Is 2nd-Hottest Year on Record

Halfway through 2017, the year is the second hottest on record, even without an El Niño to help boost its temperature.

Today’s Extreme Heat May Become Norm Within a Decade

The record global temperature of 2015 is likely to become the norm by 2040, and possibly even earlier.

Greenhouse Gases Are Rapidly Changing the Atmosphere

A new report shows that greenhouse gases' influence on the climate has increased 40 percent since 1990.

Rising Temps Could Bring Flight Delays Worldwide

Flight delays and restrictions could become more common as temperatures rise due to climate change.

Arctic Heat Is Becoming More Common and Persistent

Rising background temperatures are conspiring to make Arctic winter warm waves more common and persistent.

The West Is on Fire As Heat Records Fall

A scorcher of a heat wave broke temperature records across the West and helped fuel new wildfires.

The Arctic Has Been Crazy Warm All Year. This Is What It Means for Sea Ice

Arctic melt season has begun in earnest with sea ice at its lowest June volume on record.

This Is How Climate Change Will Shift the World’s Cities

Billions of people call cities home, and they're going to get a lot hotter because of climate change.

Climate Change Could Disrupt Food ‘Chokepoints’

Weather-related disruptions at so-called "chokepoints" could limit global food supplies and push up prices.

Global Warming Tipped Scales in Europe’s Heat Wave

A major heat wave that helped fuel deadly wildfires in Portugal was more likely because of global warming.

Climate Change Will Hit the Poorest the Hardest in the U.S.

A landmark study shows that climate change will disproportionately affect poor counties in the South.

Sunnier Skies Driving Greenland Surface Melt

An uptick in clear, sunny summer skies is driving a jump in surface melt across the Greenland ice sheet.

States Betting on Giant Batteries to Cut Carbon

Some states and power companies are rolling out a new weapon against fossil fuels — giant batteries.

Climate Change Altering Droughts, Impacts Across U.S.

Climate change may be altering the characteristics and impacts of drought across the U.S.