More than 1,000 tornadoes sprout up across the US in the average year, causing billions of dollars in damage and killing scores of Americans. Track them here.

A minor, 3.8-magnitude earthquake struck in Southern California on Monday, according to the United States Geological Survey.

Pine Hollow Arboretum is one of many botanical gardens rethinking their planting strategies as the climate warms. These ...

The EPA has an action level of 148 Bq/m 3, and the average outdoor ... Koutrakis, High-resolution national radon maps based on massive indoor measurements in the United States, Proc.

so when we see a percentage like that we might not realize how many waterways there are in the United States and how many are threatened. The map above gives you an idea of the number of rivers ...

You can get in touch with Marni by emailing [email protected] ... requirement for public schools. A Newsweek map shows which states mandate sex and HIV education.... Courtney Normand, director ...

As you make your eclipse-viewing plans, these interactive maps should help you chart ... to northeast over portions of Mexico the United States and Canada. Mexico's Pacific coast will be the ...

Passed in more than half of U.S. states, the laws are often part of sweeping bills that targeted multiple parts of the process, including absentee voting, early voting, and Election Day voting.