Prof. Ray Najjar On Climate Changes Impacts on Weather, Forests

Ray Najjar, Penn State University Associate Professor of Meterorology and Geosciences, talks about the findings in a Union of Concerned Scientists report on potential global warming impacts on weather and forests in Pennsylvania at a press conference in Harrisburg.
Watch these other presentations from the press conference:
John Walliser, Pennsylvania Environmental Council
Lance Pierce, Union of Concerned Scientists
Shelby Fleischer, Penn State University Professor of Entomology
Donna Cooper, Secretary of Policy and Planning