Topics Health
Extreme Heat: When Outdoor Sports Become Risky
Extreme heat index days—when heat and humidity make it difficult for the body to cool itself off—have been increasing in cities across the country.
National Map of Heat Index Days Dangerous for Outdoor Sports
A new Climate Central report finds an increase in days with an extreme heat index, which greatly impact outdoor sports and the risk of heat illnesses.
Explainer: Health Impacts in Excessive Heat
A new Climate Central report finds an increase in days with an extreme heat index, which greatly impact outdoor sports and the risk of heat illnesses.
Danger for Sports: Days with a 90°F+ heat index
A new Climate Central report finds an increase in days with an extreme heat index, which greatly impact outdoor sports and the risk of heat illnesses.
Ozone Season Lengths Across the Country
As long as ozone season sticks around, so do concerns about the health risks of poor air quality. Check out where ozone is an issue across the country.
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.
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.
Hotter Summers Mean More Stagnant Air
Hotter summers often lead to more stagnant air—trapping air pollutants that can cause health problems.
