Parkinson's disease may soon have a smell test

Joy Milne's amazing ability is helping scientists develop a diagnostic test for the disease.

So what did California do with that $1.4 billion in cap-and-trade money?

Here's what a state can buy when it starts taxing polluters.

Alexandria Ocasio-Cortez tears into Republicans painting Green New Deal as ‘elitist’

“Tell that to the kids in the south Bronx…tell that to the families in Flint.”

Trump and Big Oil Want To Pull the Plug on the Electric Car Market

Vieques' 400-year-old Ceiba tree blooms again after Hurricanes Irma and Maria

Vieques' 400-year-old Ceiba tree is alive, and locals are celebrating their beloved, iconic tree.

How making lower Manhattan larger will protect it from future flooding

Mayor Bill de Blasio's $10B climate resiliency plan would extend the Manhattan shoreline by as much…

Man runs through dust devil at Mayan pyramid

Watch as a man runs through a dust devil that popped up near El Castillo, a…

10 haunting images from the Sony World Photography Awards

Photographers capture landscapes, portraits, wildlife and more for Sony World Photography Awards.

You don't even want to know what's in your dust

There’s a party going on in your household dust, and it’s 9,000 microbes strong and may…

When spring cleaning doesn't bring you joy

If you can't bring yourself to go all Marie Kondo on spring cleaning this year, try…