Halfway through a 10-day voyage, a government-sponsored expedition isn't finding any traces from the Gulf oil spill, directly contradicting findings by several independent research teams.
The population of Florida panthers has increased from 25 adults in 1995 to 100 today thanks to human intervention. But without continued intervention, the species will become extinct.
The first peer-reviewed scientific study of the volume of the Gulf oil spill concludes that 4.4 million barrels spewed into the Gulf – very close to the government's estimate.
Five Great Lakes states are suing Illinois to force it to close two shipping locks. But US officials are pursuing other ways to keep Asian carp out of the Great Lakes, and even the Chicago mayor has a proposal.
Some crude from the Gulf oil spill has seeped into the sand. It may be altering ecosystems – 'for all time,' one expert says.
Fracking, or hydraulic fracturing, is a controversial process for extracting natural gas from shale. Critics of fracking question the environmental and health effects of pumping thousands of gallons of water and chemicals underground.
Virus that wiped out cricket farms in Europe has American cricket-keepers worried. Zoos, theme parks, and reptile owners rely on the industry.
The natural-gas production industry has resisted providing information about fracking or hydraulic fracturing chemicals, which some say have fouled drinking-water wells.
BP raises the titanic steel blowout preventer, whose failure led to the Gulf oil spill, one of the world's worst. What story will it tell?
Plastic bags from grocery stores and pharmacies would be banned starting in 2012 under a new bill before the senate. Critics of the bill say recycling programs, not bans, are the answer.
The IPCC climate change advisory panel, stung by criticism that it ignored dissenting views, underwent an independent review of its management. Observers have called the report 'remarkably hard-hitting.'
A study released Tuesday suggests that a new species of microbe is consuming the undersea plumes in the Gulf oil spill – perhaps more quickly than scientists anticipated.
Researchers found orange blobs in blue crab larvae in May. The discovery is part of a push to understand what effect the Gulf oil spill is having on the foundations of the Gulf food chain.
A judge on Monday scheduled hearings in an Asian carp case for September – a move that will allow five Midwestern states to call on expert testimony. The five states are seeking to close two Chicago canals in a bid to stop Asian carp from entering the Great Lakes.
A new study recorded a slight dip in the amount of CO2 taken up over the past 10 years. If the trend continues, scientists say it could signal a tipping point in earth's ability to remove carbon dioxide from the atmosphere.
US and Australian scientists measured the plume from the Gulf oil spill during a research cruise. The findings are published Thursday.
The White House’s new guidelines for offshore oil drilling in deep water were intended to make it tougher for oil companies to avoid detailed environmental reviews.
The new estimate from marine scientists comes two weeks after a report that prompted rosy conclusions from some Obama administration officials about the Gulf oil spill.
An Obama task force Thursday said that carbon capture – in which greenhouse gas emissions would be stored underground – is feasible. It's seen as a promising way to combat global warming.
BP said its 'bottom kill' to plug the Gulf oil spill well permanently should start later this week. BP also deposited its first installment – $3 billion – in the Gulf escrow fund.