@CNN: In less than 200 years, humans have reversed a multimillion-year cooling trend, new research suggests https://t.co/8GXnXBaYFP https://t.co/PzZXbIT6ke

@CNN: In less than 200 years, humans have reversed a multimillion-year cooling trend, new research suggests https://t.co/8GXnXBaYFP https://t.co/PzZXbIT6ke