@CNN: In less than 200 years, humans have reversed a multimillion-year cooling trend, new research suggests https://t.co/6D4wSarLuw https://t.co/3pQgj4e0kq

@CNN: In less than 200 years, humans have reversed a multimillion-year cooling trend, new research suggests https://t.co/6D4wSarLuw https://t.co/3pQgj4e0kq