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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Strongest Tropical Cyclones by Region

Tropical cyclones, the more general term for hurricanes globally, have been setting records in the last few years. In a warming climate, the most intense of these storms are getting stronger, and some of the strongest on record have been seen in the last decade. Defined by wind speed, last year’s Hurricane Irma was the strongest storm on record in

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Fall Warming Trends Across the U.S.

Happy meteorological fall! This week, we examined the trends in average fall temperature across the U.S. Of the 244 cities analyzed, 80 percent have warmed at least 1°F in the last half-century, compared to only 1 percent which have cooled 1°F or more. The warming has been especially pronounced recently, as the last three falls have been within the

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How Climate Change Affects Fishing

Each year, more than 49 million Americans fish recreationally in freshwater rivers and lakes. Some fish to relax, and some for the thrill. But in a changing climate, a new generation of anglers will have to get used to conditions far different from those of their parents and grandparents. Warming water in streams, rivers, and lakes is changing the

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Smoke Wave Days in the Western U.S.

The U.S. has come a long way in cleaning up its air. The Clean Air Act of 1970 made air pollution catastrophes like the 1948 smog that killed nearly 40 people near Pittsburgh a distant memory. But while the air is much cleaner overall, smoke from wildfires is threatening the progress that’s been made, as particulate pollution from wildfires has

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Climate Indicators

Learn more about the 10 key indicators of a warming climate

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Arctic Sea Ice

Ice has both ecological and economic benefits and its extent could influence weather around the world.

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El Niño

El Niño is a warming of waters in the equatorial Pacific that influences global weather patterns.

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Ocean Acidification

Acidifying oceans can hurt coral reefs and shellfish as well as the people that rely on them for their livelihoods.

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Carbon Dioxide

CO2 is a potent greenhouse gas and plays a vital role in regulating Earth's surface temperature through radiative forcing and the greenhouse effect

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Extreme Heat

Increasing frequency and magnitude of extreme heat can affect health, power usage and more.

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Snow Cover

A shorter snow season increases the amount of sunlight absorbed by the Earth’s surface and can further warm the planet.

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Sea Level Rise

Sea level rise could force millions to leave coastal areas and cost the world trillions of dollars.

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Land Ice

Melting land ice contributes to sea level rise.

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U.S. Wildfires

Wildfires damage forests and release CO2.

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Global Temperature

The global temperature is the clearest measure of how human greenhouse gas emissions are affecting our planet.

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