Billion-Dollar Disasters Trending Up

Floodwaters surged through Boston streets during a March Nor’easter. Nearly 19,000 structures were destroyed in the Camp Fire, which became California’s largest-ever wildfire just months after the previous record blaze. Hurricanes Florence and Michael flooded farms and flattened homes. It has been another year of devastating extreme weather events,

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The Widespread Climate Benefits of Trees

With fall foliage at its finest this month, it’s a popular time to celebrate trees. This week, we’re branching out beyond their vibrant colors to explore how trees benefit our climate and health. To quantify these benefits, we turn to the U.S. Forest Service, which has developed a series of free tools that measure the impact of trees on many scale

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New Homes in the 2050 Coastal Flood Zone

In 2012, Hurricane Sandy slammed into New Jersey, producing a major storm surge and damaging or destroying many thousands of homes. Over the years that followed, builders put up new houses and reconstructed damaged ones, in many areas that will be vulnerable to more flooding in the future — even in the absence of a superstorm like Sandy. The post-

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Greenhouse Gas Concentrations

Volume II of the Fourth National Climate Assessment (NCA4) is expected to be released soon. Written by more than 300 scientists, this report comes from the congressionally mandated U.S. Global Change Research Program (USGCRP), which was created with the passage of the Global Change Research Act of 1990. Volume I of NCA4, the Climate Science Special

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hottest years for U.S. cities

Hottest Years for U.S. Cities

We calculated the average annual temperatures at 244 individual U.S. stations throughout their periods of record, highlighted the decade in which each record hot year was established, and showed the breakdown of each station’s records by decade. Only one place in our sample had its hottest year on record in 2018 — Palm Springs, California. On the

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christmas climate extremes

Christmas Climate Extremes Across the U.S.

It’s that time of year when people are wondering about their chance for a white Christmas. Despite historic, early-season snow from Calgary, Alberta to Roanoke, Virginia, the overall snow-covered area in North America is shrinking as temperatures rise with climate change.

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2018 precip records

2018’s Precipitation Records On One Map

At 2:40PM on May 27, the National Weather Service issued a flash flood warning to the residents of Ellicott City, Maryland, west of Baltimore. Less than three hours later, a torrent of water gutted the city’s historic center — the second time since 2016 that extreme precipitation devastated Ellicott City’s old town. 2018 is on track to be the

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billion-dollar disasters trending up

Billion-Dollar Disasters Trending Up

Floodwaters surged through Boston streets during a March Nor’easter. Nearly 19,000 structures were destroyed in the Camp Fire, which became California’s largest-ever wildfire just months after the previous record blaze. Hurricanes Florence and Michael flooded farms and flattened homes. It has been another year of devastating extreme weather events,

more
fastest warming seasons

Fastest Warming Seasons

Climate change is causing temperatures to rise throughout the year, but some seasons are warming faster than others. As we approach the start of meteorological winter on December 1st, we see that winter is warming the fastest in most of the country. Since 1970, winter has warmed at least 1°F in all states analyzed, and at least 3°F in two thirds of

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ghg concentrations

Greenhouse Gas Concentrations

Volume II of the Fourth National Climate Assessment (NCA4) is expected to be released soon. Written by more than 300 scientists, this report comes from the congressionally mandated U.S. Global Change Research Program (USGCRP), which was created with the passage of the Global Change Research Act of 1990. Volume I of NCA4, the Climate Science Special

more
ghg sources

Greenhouse Gas Sources in the U.S.

Volume II of the Fourth National Climate Assessment (NCA4) is expected to be released soon. Written by more than 300 scientists, this report comes from the congressionally mandated U.S. Global Change Research Program (USGCRP), which was created with the passage of the Global Change Research Act of 1990. Volume I of NCA4, the Climate Science Special

more
Rising Global Temperatures and CO2

Rising Global Temperatures and CO2

The average global temperature fluctuates every year. However, when you look at a snapshot of the global temperature trend, it's on the rise - particularly since 1970. The main cause? Carbon dioxide and other greenhouse gas emissions from human activities. There are plenty of factors that influence temperatures in different regions across the

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sea level rise threats

New Homes in the 2050 Coastal Flood Zone

In 2012, Hurricane Sandy slammed into New Jersey, producing a major storm surge and damaging or destroying many thousands of homes. Over the years that followed, builders put up new houses and reconstructed damaged ones, in many areas that will be vulnerable to more flooding in the future — even in the absence of a superstorm like Sandy. The post-

more
widespread climate benefits of trees

The Widespread Climate Benefits of Trees

With fall foliage at its finest this month, it’s a popular time to celebrate trees. This week, we’re branching out beyond their vibrant colors to explore how trees benefit our climate and health. To quantify these benefits, we turn to the U.S. Forest Service, which has developed a series of free tools that measure the impact of trees on many scale

more
warmer fall nights

Fall Nights Are Warming in Our Changing Climate

Fall is a season of transition and big swings in weather; snow has already fallen in the Front Range of the Rockies, while warm and humid conditions hung over the East Coast as recently as last week. As the climate changes, fall is not as cool as it used to be, and cooler weather is being delayed until later in the season. This change affects the

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coastal flooding future

Climate Change Increasing Frequency of Coastal Flooding

“King Tides,” the highest astronomical tides of the year, are just around the corner — as the Earth, moon, and sun line up for peak gravitational pull on the oceans. Ocean currents and topography also play a role in when these peaks occur and how high they get. On the East and Gulf Coasts, they tend to come in October, while on the West Coast, they

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