Conservative distrust of Pope Francis, which has been building in the U.S. throughout his pontificate, is reaching a boiling point over his plan to urge action on climate change.
Environmental advocates will lose an ally in Congress when Barbara Boxer leaves the Senate at the end of her term in 2016 after more than three decades in office.
Local climate change experts are coming together next month to persuade Pittsburghers to begin using sustainable energy instead of non-renewable energy resources that pollute and raise the temperature of the Earth.
A group of Protestant churches has become the first U.S. religious body to vote to divest its pension funds and investments from fossil fuel companies because of climate change concerns.
A historic Pennsylvania state forest is facing a serious threat from invasive insects and scientists say climate change is a contributing factor.