CASTLETON On Tuesday, Feb. 5 at 7 p.m. the Castleton Free Library will host a program by Dr. Alan Betts about claims of global climate change and its impact on Vermont. Global climate change, which a number of experts and many politicians claim is driven by greenhouse gases from the worlds fossil-fuel economy, may accelerate in the coming decades. However, a November 2007 U.S. Senate report published the names of 400 scientists claiming global climate change is either not occuring or is not created by fossil fuel use. Betts will discuss the science of what is happening and the possible impact on Vermonts natural environment. He will also consider strategies for changing course and the many obstacles to change. Betts, of Atmospheric Research of Pittsford, is an internationally known climate scientist and the past president of the Vermont Academy of Science and Engineering. He has received variousy awards for his contributions to understanding the Earths atmosphere and climate and helped the Governors Climate Change Commission develop a strategy for reducing Vermonts greenhouse gas emissions by 50% in the next 20 years. He is a frequent speaker on climate change around the state. The program is free and open to the public. There will be tea and cookies afterwards and time to chat. For more information, call 468-5574.