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Learn how long-term climate trends are linked to new extremes.
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Climate change is making droughts more likely to occur - and more severe when they do.
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Global warming is causing widespread and rapid changes in the atmosphere, ocean, cryosphere and biosphere.
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Climate change is increasing the size, frequency, and intensity of wildfires.
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Climate Signals curates attribution science and provides resources in real time explaining how climate change worsens extreme weather and other impacts.
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Climate change is increasing the risk of flooding due to a variety of reasons including rising sea levels and increasing extreme precipitation events.
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Climate change makes heat waves hotter, longer, and more common.
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Rising air and ocean temperatures due to climate change are increasing hurricane precipitation, intensity, and the risk of coastal flooding.
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What is climate attribution?
Climate change attribution tells us how much of the credit or risk for a trend or event should go to human-caused climate change.
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Report: Fingerprints Everywhere 2018
Studies since the 1990s show human-caused climate change directly influenced many recent trends and events.
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Attribution science database
An updating database of studies that find the fingerprint of human-caused climate change on observed trends and events.
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Climate Change Impacts Explained in Real Time
Headline
Publication Date July 28, 2016

Nights in Philly getting more sultry, data show

 United States
Though the weather had cooled somewhat on Wednesday, Daryl Hadden did a brisk business in water bottles at the corner of 6th and Market Streets on Wednesday, July 27, 2016. Photo: Tom Avril, Philly.comThe nights are getting hotter in Philadelphia, and it has nothing to do with nightlife. Overnight temperatures have been creeping upward for the last 25 years, more robustly than daytime highs, and health experts say that is a cause for concern. An analysis of daily minimum temperatures showed that between 1

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