Not Clearly Pro or Con to the question "Can Alternative Energy Effectively Replace Fossil Fuels?"
"Natural gas can serve as a bridge fuel to a low-carbon, sustainable energy future. In particular, natural gas can provide the critical low-carbon 'firming' or back-up fuel that can enable deep market penetration of both wind power and concentrated solar thermal power. The marriage of gas and renewable energy in the form of hybrid wind-gas and solargas plants addresses the issue of renewable intermittency, greatly enabling low-cost/low emissions power generation...
The goal... would be to meet future electricity demand with efficiency in addition to wind, solar, geothermal, biomass, and other similar renewable sources as well as natural gas."
"Natural Gas: A Bridge Fuel for the 21st Century," www.americanprogress.org, Aug. 10, 2009
Experts Individuals with PhDs, heads of government, members of state or federal legislative bodies, and individuals with graduate degrees and significant post-graduate involvement in alternative energy or fossil fuel issues. [Note: Experts definition varies by site.]
Involvement and Affiliations:
President, United Nations Foundation, 1997-present
Recipient, Champion of the Earth Award, United Nations Environment Programme
Lead US Negotiator, Kyoto Climate Conference
Chair, United States Delegation, Cairo Conference on Population and Development, 1994
Undersecretary for Global Affairs, Department of State, 1993-1997
United States Senator (D-CO), 1987-1993
Former Member, United States Senate Committies on Armed Services, Budget, Banking, Housing and Urban Affairs, and Energy and Natural Resources
United States Representative (D-CO), 1975-1987
Deputy Assistant Secretary of Education, Department of Health, Education and Welfare, 1969-1970