As Pennsylvania’s gas boom helps propel the United States away from coal-fired power, one energy researcher says the impact on climate change will be a wash.
There's a delicate calculation that goes into environmental regulations for air pollution -- the number of jobs in coal and other polluting industries we're willing to save versus the number of premature deaths as a result of pollution.
They can be devastating to native habitats like forests and wetlands--but you have to give it to them: invasive plants are successful, in part, because they’re flexible.
The hemlock woolly adelgid is almost impossible to see with the naked eye. But the tiny insect causes lots of damage to hemlock trees and their surroundings.
