(This post is one of many linked to this year's Blog Action Day topic, climate change. To read more, visit the Blog Action Day Website , or look for #bad09 on Twitter .) Generally when I think of the impact of climate change, Pennsylvania is not the first place that comes to mind. After polar bears , penguins , and the impact climate change will have on poverty throughout the world , I might start wondering about the changes that will come to my daily life. But even here in Pennsylvania, the changes will be big. The Union of Concerned Scientists released a report last year noting that through climate change: Air quality in PA is likely to decrease, thereby increasing the prevalence of asthma, allergies, and other respiratory ailments. Yields of certain crops and dairy products will decrease. Certain species of hardwood trees and birdlife may disappear. Under best-case scenarios, Western PA will have a climate similar to today's climate in West Virginia and Ohio within 30 y...