From: Counting the CostThe real cost of climate changeCarbon trading is supposed to cap the amount of emissions made by companies, but is it a waste of money?
No end in sight for oil in the Gulf of MexicoFresh oil seepages raise questions about further problems with BP’s damaged oil well.
In Pictures: BP oil spill damage continuesTwo Louisiana beaches were closed to the public after Tropical Storm Lee uncovered huge tar and oil mats.