(2010). Emerging technologies and practices for reducing greenhouse gas emissions: Hearing before the Subcommittee on Private Sector and Consumer Solutions to Global Warming and Wildlife Protection of the Committee on Environment and Public Works, United States Senate, One Hundred Tenth Congress, first session, May 9, 2007.

Emerging Technologies and Practices for Reducing Greenhouse Gas Emissions: Hearing Before the Subcommittee on Private Sector and Consumer Solutions to Global Warming and Wildlife Protection of the Committee on Environment and Public Works, United States Senate, One Hundred Tenth Congress, First Session, May 9, 2007. 2010.

Emerging Technologies and Practices for Reducing Greenhouse Gas Emissions: Hearing Before the Subcommittee on Private Sector and Consumer Solutions to Global Warming and Wildlife Protection of the Committee on Environment and Public Works, United States Senate, One Hundred Tenth Congress, First Session, May 9, 2007. 2010.