Go read this article from the Wall Street Journal on the Cap and Trade legislation.
Cap and Trade is a hidden tax that will drive up the price of energy for you, me, and every other person out there. It's all done in the name of the environment, but in all actuality it just hurts the economy. The U.S. is not polluting this world near to the extent that China and India are. That doesn't mean we shouldn't do our part to keep our part of the world clean. But putting more stress on an already stressed economy does not clean up the earth. It just stresses the economy further which discourages people from updating their old junky car to something that doesn't pollute nearly as much and that's more fuel efficient as one example.
What can you do? Call and write your senators and representatives and tell then to vote against this. Let them know their job depends on it. Supposedly they may be voting on this as early as tomorrow, so don't wait. Call and write NOW!!!
http://www.senate.gov/ for your senators
http://www.house.gov/ for your representatives