Four lane highway in Nebraska

An Algae Farm for Cleaner Highways

A design firm has come up with an answer to highway pollution, running tubes of photosynthetic algae to absorb CO2 pollution from traffic.
Black and white drawing of a Giant Moa, an extinct flightless bird

How Many People Does it Take to Wreck an Ecosystem?

A relatively small number of people are required to destroy and ecosystem
Tweezers holding a leaf and placing it in a test tube

EPA Announces 2014 Presidential Green Chemistry Award Winners

The 2014 Presidential Green Chemistry Award winners discover new strategies for pollution prevention.
The sun rising over the Earth's horizon

Welcome to the Anthropocene

What is the anthropocene?
A lone creature among the sea plants underwater

Why Isn’t Anyone Talking About Ocean Acidification?

Will ocean acidification disrupt the planet's ecosystem before climate change does?
Arid Lands Institute

Embracing Dry Land: Water-Smart Urban Design and Drought in the American West

Water-smart urban design and drought in the American West.
Male and Female symbols on restroom doors

Climate and Gender: Too Few Males?

Could climate change lead to fewer males?
Color coded map expressing ozone concentration over different parts of the globe. Ozone concentration trends upwards from lower hemisphere to upper.

Signs of Recovery in Earth’s Ozone Layer, but Danger Remains

For the first time in 35 years, atmospheric ozone actually increased, according to NASA measurements.
Clams in shallow water

For the Next Generation in Solar Power, Talk to the Clam

The next generation of solar power might be waiting beneath the Pacific waves, in the form of an armchair-sized clam.
A lone wolf walking a city's sidewalks.

Keeping Up with the Carnivores

Biological research tracks predatory carnivores, who are increasingly veering into North American cities.