Leslie Nemo

Leslie Nemo is a writer based in New York City. Her work has appeared in The Atlantic, Scientific American, and elsewhere.

A disposal box at McCarran International Airport in Las Vegas, Nevada. The tear stains around it have dried.

Federal Law Leaves Marijuana in a No-Fly Zone

Federal regulations mean that passengers flying from one weed-legal destination to another with their personal stash may still be breaking the law, but in at least one U.S. airport, that weed can fly.

A green roof in Springfield, Ill.

Can We Make Green Roofs More Biodiverse?

A study of decades-old German green roofs found that they don’t support a wide range of animal and plant life. But researchers and designers are trying to change that.