As world warms, negotiators give talks another try

The disappointment of Copenhagen, the failure of the annual U.N. conference to produce a climate agreement last year in the Danish capital, has raised doubts about whether the long-running, 194-nation talks can ever agree on a legally binding treaty for reining in global warming.

Lessons from Deepwater Horizon Oil Spill

Now that the immediate crisis is over, the accident clearly illustrates the need for continuous oceanographic monitoring of all American coastlines and the need for rapid sharing of information, both of which were in short supply immediately following the oil spill disaster.