Raking rice paddies in China with an ox-drawn plough. Engraving by J. June after A. Heckel.

Chinese Peasants Taught the USDA to Farm Organically in 1909

A hundred years later, we are still learning.
A large tree with moss-covered roots.

How Trees Can Save Lakes From Algae Blooms

In addition to cleaning air pollution, trees absorb excess nutrients from soil, preventing algae blooms in waterways.
Two IAEA experts examine recovery work on top of Unit 4 of TEPCO's Fukushima Daiichi Nuclear Power Station

How to Clean Up After a Nuclear Disaster

Workers are still cleaning up after the 2011 Fukushima Daiichi nuclear power plant partial meltdown. There's a lot of contaminated material to contend with.
Yttrium crystal

The Downside to Renewable Energy

Rare earth elements are used in virtually all electronics, and mining them is a messy business.
A gardener planting yellow flowers in the soil.

Five Steps to Making Your Garden a Carbon Sink

If the 81 million U.S. households with yards adopt these practices, they could absorb more carbon and help combat climate change.
A television with an image of the earth from space, in front of a green plant background

What’s Wrong with Planet Earth?

According to one critic, the BBC documentary inspired more appreciation for HD television than it did for engaged environmentalism.
Los Angeles

Why Is It So Much Hotter in the City?

On a sunny day, a city can be several degrees warmer than the surrounding countryside. Could better building materials make cities absorb less heat?

Salamanders Crossing: This Way to the Vernal Pool!

They may look like random puddles, but some states are building million-dollar tunnels to direct wildlife to these seasonal refuges.

This Island Is Closed for Maintenance

The Faroe Islands owe their untouched nature to their remote location and stormy climate. And to a weekend closure.
A model showing the layers of Earth

The Woman Who Found the Earth’s Inner Core

Inge Lehmann was the seismologist and mathematician who figured out what the Earth's core was actually made of.