Flakes of sea salt spilling out of a jar

A Grain of Solar-Made Sea Salt

 Artisanal sea salt makers are reviving the ancient method of sustainably harvesting salt.
A woman's hands inspecting a cannabis plant

The Environmental Downside of Cannabis Cultivation

Wide-scale cannabis cultivation is causing environmental damage. Federal regulations could change this.
Scientist viewing plant leaf in a petri dish under a inverted microscope in a laboratory.

Artificial Photosynthesis

What is artificial photosynthesis, how does it work, and why would we need it?
Plastic waste floating in the sea

Is Plastic Pollution Depriving Us of Oxygen?

Plastic debris is killing the ocean’s “invisible forests,” which produce ten percent of the oxygen we breathe.
A landfill with smoke in the background

The Lowdown on Municipal Trash Incinerators

Burning household trash in massive incinerators saves landfill space, but it also introduces a host of other waste management issues.
Potted herbs sitting on a windowsill

Three Ways to Turn Your Apartment into a Sustainable Garden

Even the smallest city dwelling has enough space for a mini-meadow or a few flower pots.
Eagle Street Rooftop Farm, Brooklyn, NY

How Urban Agriculture Can Meet Its Potential

New York City's urban agriculture has not been found to provide benefits to either hungry people or the environment. How could city farms work better?
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.