The United States House of Representatives Committee on Science, Space, and Technology are holding a hearing today starting at 10am (Eastern) titled The President’s UN Climate Pledge: Scientifically Justified or a New Tax on Americans? The webpage with link to the webcast is here, and the charter for the hearing is here.
Judith Curry is one of the witnesses. See her blog post here.
The other three witnesses are:
The Honorable Karen Harbert, President and CEO, Institute for 21st Century Energy, U.S. Chamber of Commerce; Former Assistant Secretary for Policy and International Affairs, U.S. Department of Energy
Mr. Jake Schmidt, Director, International Program, Natural Resources Defense Council
Dr. Margo Thorning, Senior Vice President and Chief Economist, American Council for Capital Formation
Again, a link to the webcast can be found here.
Bob Tisdale - Climate Observations 
I’ve said this before and I will say it again – there is absolutely no proof that Man has contributed to global warming beyond the thermal contribution from burning energy sources. To say there is stands in opposition to the obvious fact that climate has been warmer and colder in the past and Man did not cause those changes. It is a supposition that we even contribute to climate change and is an exercise of excessive ego. Those that oppose the use of carbon based fuels oppose their use not because they have changed climate, but for some other personal reasons. If Man’s population increase parallels the increase in carbon dioxide, then it must be the contribution of Man’s processing carbon based foods and breathing that has contributed to the increase, not his use of carbon based fuels since that distribution is not and can not be evenly spread across the human population of planet Earth.