Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Scientists have reached consensus on global warming

Here's what everyone needs to know about global warming: every single PEER-REVIEWED scientific study done to date supports the observation of global warming. Either you base your world-view on facts or you don't. Global warming, according to scientific consensus, is a fact, not an opinion.As to whether Crichton's book is good fiction, the experience is lessened for me owing to the lack of factual underpinning for the premise.