120 pages , Greenhaven Publishing LLC , 2008-09-22 National Geographic reports that global warming is speeding up at an alarming rate. Average temperatures have climbed 1.4 degrees Fahrenheit since 1880, and arctic ice is melting due to an increased level of greenhouse gases. Scientists predict that the Arctic may have an ice free summer by 2040. This engaging volume dissects the issues surrounding global warming and provides an overview of the topic. Its visually appealing presentation and compelling examples provide context. Readers will be inspired to think critically about global warming and how it impacts their peers and community.