Sachi Kitajima Mulkey for Grist

Sustainability & Climate

Earth's orbit is filling up with junk. Greenhouse gases are making the problem worse.

Long-exposure taken over 30 seconds showing many satellites moving across the night sky appearing as dotted lines.

Sustainability & Climate

People are flocking to Florida. Will there be enough water for them?

In an aerial view, urban sprawl along SW 157 avenue is nestled next to protected wetlands and farmland on the fringes of Everglades National Park.

Plants & Animals

Kitten season is out of control. Are warmer winters to blame?

An unweaned grey and white kitten peeks from a carrier inside the kitten nursery at the Best Friends Animal Shelter.