Much of the Upper Midwest on Saturday was dealing with swaths of unhealthy air because of drifting smoke from Canadian ...

The findings, as shown in the map above, revealed that Western and Midwestern states were more likely to have higher levels of arsenic in public drinking water.

Many states will experience temperatures that feel in the triple digits on Thursday, forecasters say.

Extreme heat is impacting states across the country. See maps of high temperature forecasts and heat index levels.

The U.S. has one of the world’s most advanced systems to monitor air pollutants. Can it keep up with a changing climate?

By cultivating a connected and founder-first ecosystem, Michigan aims to prove that economic growth can be inclusive, ...

Debate over President Donald Trump’s sweeping budget-and-policy package is over on Capitol Hill. Now the argument goes ...

The federal government effectively legalized cannabis nationwide with no rules attached, creating a quandary for ...

There’s so much to love about our national parks! That’s why we’ve put together a national parks checklist and map you can use to keep track of the ones you’ve visited and make plans to see the ones ...

In one sense, it’s odd to associate any firefly with youth, for by the time we see them lighting up our nights, they are ...

A state official briefed regulators Thursday on two separate underground pipelines that companies plan to build across hundreds of miles of North Dakota, b ...

Make a US state map quilt with the states in the shape of a heart. Cut the state patchwork pieces with cutting machine for easy patches! Map quilts are ...