The national parks are warmer and more popular than ever. They’re also likely to experience more extreme heat in the future, putting visitors and ecosystems at risk.

National Park Week kicks off on April 19, when park entrance fees will be waived. The entire week is about exploring and celebrating the more than 400 treasured sites across the National Park System.

Table 3. Top 10 ACIS stations with the highest number of days at or above a CSI of 3 during March 2025. We analyzed 191 Applied Climate Information System (ACIS) stations associated with U.S. cities.

As sea levels rise, flooding is becoming more common along U.S. coasts, where 29% of the population lives. Climate Central’s Coastal Risk Finder provides maps and analysis of the people, homes ...

Coastal Risk Finder, Climate Central’s new interactive map resource, shows who’s at risk from worsening coastal floods driven by rising seas in the U.S. — and what’s being done to adapt.

Click the downloadable graphic: States at Risk from Coastal Floods In the U.S., coastal floods now happen three times more often than they did 30 years ago — and the frequency and intensity of ...