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North America

Climate change fingerprints confirmed in Hurricane Harvey’s rainfall, August 2017

Satellite image of Harvey flooding, Credits: NASA/METI/AIST/Japan Space Systems, and U.S./Japan ASTER Science Team

Our scientific analysis found that human-caused climate change made the record rainfall that fell over Houston during Hurricane Harvey roughly three times more likely and 15 percent more intense.

31 August, 2017 | Extreme rainfall | North America

Warm Februaries becoming much more common in the US

Warm February in the US Photo by Gabriel Santiago on Unsplash

The contiguous United States (CONUS) was exceedingly warm east of the Rockies in February 2017, and is notable as being the 27th month in a row with more record highs than lows.

08 March, 2017 | Heatwave | North America

Deep freeze in the US, December 2016

Ice & snow in the US. Photo by Jahsie Ault on Unsplash

Speculation about the cause of forecast record low temperatures in the US led WWA researchers to explore the cold air outbreak – how was it affected by greenhouse gas emissions?

08 December, 2016 | Cold spells | North America

Downpours in Louisiana, August 2016

Heavy rain in Lafayette, Louisiana

Torrential rains drenched south Louisiana in mid August, with parts of the state receiving nearly 30 inches of rain between 10–17. The extreme nature of this event left many asking whether climate change may have played a role.

14 August, 2016 | Extreme rainfall | North America

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