The eclipse will allow scientists to get rare measurements of the Sun’s atmosphere.

South of Cape Cod, fiddler crabs and marsh grass have long had a mutually beneficial relationship. It’s a different story in the North, where the harms can ricochet through ecosystems.

Power companies can be publicly or privately owned and may report to corporate boards, local governments or co-op members. But there’s no one best way to deliver electricity reliably and affordably.

The federal government has new advisories on PFAS, which can put human health at risk in a list of ways, but so far only states are regulating the chemicals.

Maine and Oregon have enacted laws that require makers of consumer product packaging to pay for recycling or disposing of it. Will other states follow?

When forester Benton MacKaye proposed building an Appalachian Trail 100 years ago, he was really thinking about preserving a larger region as a haven from industrial life.

The US has one of the highest groundwater use rates in the world. When wells run dry, households may opt to conserve water, find new sources or sell and move.

Thousands of dams across the US are aging and overdue for maintenance. Taking them down can revive rivers, restore fish runs and create new opportunities for tourism and outdoor activities.