The U.S. Government should tax carbon emissions. - Inspired by George David, chairman of United Technologies Corp.

In a speech to the House of Representatives Select Committee on Energy Independence and Global Warming, George David, chairman of United Technologies Corp. said, "we need to say to our world that we are going to have a cost of carbon, whether it's cap-and-trade or a carbon tax.” He added that the cost of energy will be high for a long time.

Daniel Esty, a professor of environmental law at Yale University, told the panel that a cap-and-trade system would be the best way to encourage investment in energy efficiency, which is directly proportional to emissions.