MARKETS OPEN LOWER: Dow Jones Industrial Average Futures Fell 238... S & P's Falls 30.80...Nasdaq Falls 42.70......Greenspan Sees Worst Financial Crisis Since WWII...Fed Cuts Rate Again...

Switzerland plans to lower carbon emissions by at least 20% by 2020, a yearly reduction of 1.5%.

See what you need to know - and what you can do

The European Commission unveiled a plan to cut global warming emissions one-fifth in the next twelve years, requiring the 27 European Union (EU) countries to have specific emissions targets. But some nations don't think they're getting a fair deal.

"They say action should have been taken yesterday, but it may not be too late if we take it today."