Britannica Educational Publishing 
Global Warming [PDF ebook] 

Global warming, often a source of much politicization and debate, has recast international dialogue with respect to environmental responsibility and activism. While it is generally agreed that global warming can be attributed to human activity, solutions to this phenomenon are unclear and vary with each country. This thought-provoking volume examines the science behind the greenhouse effect, identifies the human role in and response to climate change, and explores the various effects of this worldwide phenomenon.