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National: graphs of global temps by month
The last five years have been the hottest five in recorded history
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Local: records by decade
Take a look at how record high temperatures have compared to record lows in your city.
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Summer Nights are Warming Across the U.S.
Summer minimum temperatures are warming fast across the U.S. — leading to added health risks and higher energy costs
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How Summer Nights are Changing In Your Area
Is the summer heat making it hard to sleep? Here’s how the summer minimum temperatures have been changing in your city.
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Explainer: How Ground-Level Ozone Is Formed
Ground-level ozone is a hazardous air pollutant and a key component of smog. Here’s how it forms.
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How Ozone Levels Are Changing in Your City
Ozone pollution can reach unhealthy levels in your city. Here’s how the number of unhealthy ozone days have changed over time.
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Hotter Summers Mean More Stagnant Air
Hotter summers often lead to more stagnant air—trapping air pollutants that can cause health problems.
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2019 Global Temperatures Through June: Among Top 5 Hottest on Record
The past five years have been the hottest on record globally — and 2019 is on pace to continue that trend.
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