A new survey of the waters around the site of the Deepwater Horizon disaster has found a massive, submerged plume of hydrocarbons.
Record heat and floods in Europe and Asia match climatologists' predictions, but experts are cautious about interpreting events as signs of man-made warming.
BP is now filling its broken well in the Gulf with cement as extra insurance that more oil will not escape.
About three quarters of nearly 5 million barrels of oil has been accounted for, according to a federal report. Is the worst really over?
Officials recently declared the Gulf oil spill no longer poses a risk to the East Coast. But marine scientists are worried about the oil we can't see.
Scientists find out that family is one reason why the prehistoric-looking sixgill shark keeps showing up in Puget Sound.
Engineers will pump heavy drilling fluid called "mud" into the cap in a bid to push the oil back down into the well.
Now that the Gulf oil spill is capped, we answer some pressing questions about what to expect next.
The record-breaking highs we're feeling now could soon become the norm.
Just how do you relocate some 70,000 sea turtle eggs endangered by the Gulf spill? Very, very carefully.