Summary: CDC’s Climate and Health Program helps states, cities, territories, and tribes protect human health from a changing climate. CDC provides data, tools, and technical guidance to help U.S. health agencies reduce vulnerability and increase resilience to the health effects of climate change.

El Niño communicates with North America by tweaking the jet stream. How does all that work?

Of all the potential impacts of global warming, increases in extreme heat are the most certain. Yet it's the one extreme U.S. communities have paid the least attention to so far. Ladd Keith hopes to change that.

Extreme heat has implications for power grid infrastructure, food production and nutrition, childhood education, worker health and safety, and crime.

Islands in the Caribbean can enjoy near-daily rainfall but have limited freshwater reserves, making them especially vulnerable to sudden, rapid drying. A new study identifies instances of widespread flash drought outbreaks.

Approximately $2 million has been allocated to support tribal drought resilience. This investment will help tribal nations address current and future drought risk while informing decision making and strengthening tribal drought resilience in a changing climate.

Florida's reefs have experienced unprecedented heat stress this summer. Beyond stopping global warming, what techniques can experts use to help save them?

This year’s maximum was 676,000 square miles below the 1981-2010 average and 398,000 square miles below the previous record low.

The last 17 years, from 2007 to 2023, are the lowest 17 sea ice extents in the satellite record.

Find the hottest summer day for thousands of U.S. stations with this interactive map.