A winter storm that swept through central Virginia on Tuesday left trees coated in ice, which brought down branches and caused widespread damage and power outages.
Global warming is producing a rapid loss of plant species -- according to estimates, roughly 600 plant species have died out since 1750 -- twice the number of animal species lost. But which species ...
Colorado's forests store a massive amount of carbon, but dying trees -- mostly due to insects and disease -- have caused the state's forests to emit more carbon than they absorbed in recent years, ...