Dr. Jay Lemery is one of the world’s first climate change doctors.

His job isn’t just to treat patients whose health has been effected by climate change.

He also advocates for policies to help prevent climate change.

The effects of climate change on health are already happening.

In Guatemala and El Salvador, laborers on sugar cane plantains are dying.

There has been an epidemic of kidney disease as a result of extreme heat stress.

Lemery warned that, as the planet keeps heating, it will be impossible to cool the body in some parts of the world.

Others asked what they can do to stop climate change on an individual level.

He recommended eating a plant-based diet, buying hybrid/electric vehicles, and voting.