(Editor's Note: Richardson dropped out of the presidential race for the Democratic nomination after finishing fourth place twice, with 2 percent of the delegate in the Iowa caucus and 5 percent of the delegate in the New Hampshire primary. Read an explanation on his campaign Web site.)
He has detailed a 21st century Marshall Plan to combat the global threats, which includes dealing with climate change, environmental degradation and resource depletion. He wants to restore the Clean Water Act. He wants to revive Clean Air Act standards and help states enforce them. He also wants to expand the Clean Air Act to include protections from old and dirty power plants and provide incentives for the use of cleaner fuels. He wants to expand the disclosure of toxic pollution by reversing the EPA's position on corporate reporting. He says a national Apollo-style program is needed for a climate change program. We also need a shift from fossil fuel to renewable energy in 12 years and a national effort where the president asks each American to conserve on appliances, air conditioning, washing machines, mass transit and lighting. He also wants to provide incentives to encourage "green" buildings, solar roofs and have the government fleet move to electric vehicles. He is also a strong advocate of light rail and bullet trains.
Richardson's Web site: A Career Spent Fighting for Conservation
Read more about Richardson's stands on environmental issues
YouTube video: Energy and the Environment
Governor Bill Richardson speaks about energy and the environment.
Bill Richardson on Western issues
Richardson touches on energy, environmentalism, transportation, immigration and other quality of life issues.
YouTube: How to solve global warming
Gov. Bill Richardson explains what it will take to reduce global warming emissions to a group of environmental professionals in Concord, NH on July 16, 2007.
Quotes from the video: "If Las Vegas and Miami were light rail served, there wouldn't be a disasterous mess there." "The biggest issue in Nevada is traffic congestion. I thought it was going to be water. They can't get through the Strip. That would be a very intensive component."
— Las Vegas Sun new media managing editor Dave Toplikar contributed to this report.