-- It is likely that annual precipitation will increase in Pennsylvania and very likely that winter precipitation will increase;

 

-- Warming will lead to a longer growing season of 3 to 5 weeks lengthening, respectively, by late century and corresponding frost day decreases are 4 and 6 weeks;

 

-- It is likely that Pennsylvania’s precipitation climate will become more extreme in the future, with longer dry periods and greater intensity of precipitation;

 

-- There is substantial uncertainty in projections of future tropical and extratropical cyclones for Pennsylvania. Current research suggests fewer storms but with increases in intensity.

 

-- Changes will cause certain species of northern hardwood trees to be reduced; and

 

-- Increases in stream water temperatures will stress aquatic ecosystems and fisheries as well as wetlands;

 

The 311-page Impacts Assessment was put together by group of nine professors at Penn State University.