Thank you for co-sponsoring S.342, the Climate Stewardship Act. As you know, this bill is would provide for scientific study of the nature and extent of human-engendered climate change, and would establish am efficient, market-based system of emissions trading in order to reduce greenhouse-gas emissions. Climate change is a phenomenon that affects all of us, and creating a national market for emissions credits is a proven strategy to help address such problems of global reach.