Ira Jackson pulls his boat through a flooded street September 5, 2005 in New Orleans, Louisiana after Hurricane Katrina

How Toxic Are Flood Waters?

While flood waters can be extremely polluted, researchers have found the lasting impact is different from what one might expect.
An empty wheelchair

The Complicated Issue of Transableism

Some people born in able bodies feel as if they were meant to have disabilities. How should the medical community be responding?
Aeroplankton

Aeroplankton: The Life in the Air We Breathe

Just as the ocean is full of plankton, the air we breathe teems with microorganisms.
A person swimming near a coral reef

Can Eco-Tourism Save Coral Reefs?

Eco-tourism can be a boon—or an ecosystem destroyer.
An explosion on Earth

Understanding Planet-Wide Danger

The way Americans metabolized the global threat of nuclear war has had lasting effects on how we think about our newest global threat: climate change.
Illustration of reservoir in Austrian mountains supplying water for storage in hydroelectric turbines

Renewable Resources Call For Increased Power Storage

Solar and wind power are great renewable options, but to store the energy that's produced, we're going to to need bigger batteries.
A billet of highly enriched uranium

What Is Enriched Uranium?

And what does it mean that Iran has enriched uranium past the 4.5% level?
A child on a farm looking at chickens

Why You Should Visit a Farm This Summer

Agritourism may sound like a hot new trend, but it's actually been helping farms stay in business for over a century.
An illustration of vitamin pills

How Dietary Supplements Can Cause More Harm Than Good

The real problem with useless vitamins and other supplements? A psychological side effect known as "illusory invulnerability."
A fisherman on the dock with his catch.

How to Eat Seafood — Sustainably

Fish stocks are collapsing. But you can still enjoy your freshest local seafood without feeling too guilty—and here’s why.