I'm a Global Warming skeptic, and I invite you to change my mind. : science: "Here are some sources that might help,
1.
NASA http://www.nasa.gov/worldbook/global_warming_worldbook.html http://earthobservatory.nasa.gov/Features/GlobalWarmingQandA/ http://data.giss.nasa.gov/gistemp/graphs/Fig.A2.lrg.gif (The graph)
2.
National Oceanic and Atmospheric Administration National Climatic Data Center http://www.ncdc.noaa.gov/oa/climate/globalwarming.html
3.
World Meteorological Organization (WMO) http://www.wmo.ch/pages/about/wmo50/e/world/climate_pages/global_warming_e.html
4.
American Meteorological Society http://www.ametsoc.org/policy/2007climatechange.html
5.
National Center for Atmospheric Research “How do we know Earth is warming now?” http://www.ncar.ucar.edu/research/climate/now.php
6.
Earth System Research Laboratory - Global Monitoring Division “Climate Forcing” http://www.esrl.noaa.gov/gmd/about/climate.html
7.
University Corporation for Atmospheric Research http://www.ucar.edu/research/climate/warming.jsp
8.
Jet Propulsion Laboratory - California Institute of Technology “Global Climate Change” “How do we know?” http://climate.jpl.nasa.gov/evidence/
9.
American Geophysical Union (world's largest scientific society of Earth and space scientists) “Human Impacts on Climate” http://www.agu.org/sci_soc/policy/climate_change_position.html
10.
American Association for the Advancement of Science “The scientific evidence is clear: global climate change caused by human activities is occurring now” http://www.aaas.org/news/press_room/climate_change/mtg_200702/aaas_climate_statement.pdf http://www.aaas.org/news/press_room/climate_change/
11.
The United States Energy Information Administration “Greenhouse Gases, Climate Change, and Energy” http://www.eia.doe.gov/bookshelf/brochures/greenhouse/Chapter1.htm
12.
Massachusetts Institute of Technology “Report: Human activity fuels global warming” http://web.mit.edu/newsoffice/2007/climate.html
13.
California Institute of Technology “How We Know Global Warming is Real” “The science behind human-induced climate change” http://www.gps.caltech.edu/~tapio/papers/skeptic_2008.pdf
14.
Atmospheric Sciences - University of Illinois - Champaign “Evidence continues to mount that human activities are altering the Earth’s climate on a global scale.” http://www.atmos.uiuc.edu/research/01climate.html
15.
Woods Hole Oceanographic Institution “Global Warming” http://www.whoi.edu/page.do?pid=12457
16.
The UK’s Met Office Hadley Centre “Climate change - the big picture” http://www.metoffice.gov.uk/corporate/pressoffice/myths/index.html http://www.metoffice.gov.uk/climatechange/guide/
17.
The UK’s Royal Society “Climate change controversies: a simple guide” http://royalsociety.org/page.asp?id=6229
18.
Intergovernmental Panel on Climate Change (Based in Switzerland) “Climate Change 2007: Synthesis Report” http://www.ipcc.ch/pdf/assessment-report/ar4/syr/ar4_syr_spm.pdf
19.
Japan Meteorological Agency “Global Warming Projection Vol.7” http://ds.data.jma.go.jp/tcc/tcc/products/gwp/gwp7/index-e.html
20.
The Australian Meteorological and Oceanographic Society “Our climate has changed substantially.” “Global climate change and global warming are real and observable.” http://www.amos.org.au/publications/cid/3/t/publications
21.
Royal Society of New Zealand “The globe is warming because of increasing greenhouse gas emissions.” http://www.royalsociety.org.nz/Site/news/media_releases/2008/clim0708.aspx
22.
National Geographic Magazine http://environment.nationalgeographic.com/environment/global-warming/
23.
Scientific American Magazine http://www.sciam.com/topic.cfm?id=global-warming-and-climate-change"