Associated Press: The chairman of the U.S. Senate Energy and Natural Resources Committee said Tuesday that it’s unclear whether Congress will be able to pass cap and trade legislation aimed at reducing greenhouse gas emissions this year. Sen. Jeff Bingaman, D-N.M., said there’s no consensus on what form a cap-and-trade system would take, but strong desire exists in both the Senate and House to pass other energy-related bills that would curb pollution blamed for global warming. Bingaman said the …