Fletcher's 1st edition of Climate Change: What the Science Tells Us places strong emphasis on the peer-reviewed literature in reporting the impacts of climate change on the ocean, terrestrial ecosystems, the water cycle, human communities, dangerous weather patterns, and potential future Earth systems. The book offers detailed discussion of greenhouse gases, oceanic and atmospheric processes, Pleistocene and Holocene paleoclimate, the human fingerprints of climate change, modeling climate, sea level rise, climate impacts on economic sectors, and dangerous weather patterns associated with climate change. Fletcher offers the first real textbook to present the science surrounding climate change at the right level for an undergraduate student. His polished writing style makes this an entertaining read while the pedagogical support and organization helps students better identify and understand key concepts, ideas and terms. Each chapter is organized with learning objectives, student exercises, videos, scientific citations to promote further learning, and creative thinking problems to underpin classroom discussion.