Conservation & Green Economy
There's a strict set of standards for organic foods. But the rules are looser for household cleaners, textiles, cosmetics and the organic dry cleaners down the street.
A new biofuels plant in southwest Kansas represents the future of ethanol production in the U.S., Energy Secretary Ernest Moniz said.
Decades of US tornado data has suggested twisters are ganging up and grouping together, according to meteorologists.
Montana wildlife officials decided Thursday against shipping 145 bison captured from Yellowstone National Park to the Bronx zoo and other locations across the country.
The California Supreme Court decided Wednesday not to consider an appeal of a case brought by opponents of the state's $68 billion bullet train project, delivering a crucial ruling that allows construction to go ahead as planned.
Cheap and plentiful natural gas isn't quite a bridge to a brighter energy future as claimed and won't slow global warming, a new study projects.
A new study suggests fracking triggered hundreds of small earthquakes in Ohio late last year, months before the state first linked seismic activity to the oil-and-gas extraction technique.
Kate McNellis is among a growing number of Americans in their 20s and 30s helping reverse a three-decade decline in agriculture's supply of young farmers.
Defense officials say a report will lay out plans for the Pentagon to get a better handle on how climate change will affect the military, and determine how best to deal with the challenges.
Fish are moving poleward in search of water with healthier habitat and more food to eat.
Automakers' fuel economy reached a record average of 24.1 miles per gallon in the 2013 model year -- but the government expects that to more than double by 2025.
A satellite that measured the potent global-warming gas methane in the atmosphere has found a surprising hot spot over the southwestern U.S.
Lego ditched a long-standing partnership with Royal Dutch Shell after a Greenpeace video used its toys to illustrate an Arctic oil spill.
The cost of doing nothing about global warming could bring about not only disastrous climate changes but also worldwide conflict, Secretary of State John Kerry warns.
A solar-energy company has dropped a proposal to build a 75-story solar tower employing a kind of solar technology that can cause birds to ignite in midair.