The science is overwhelming:    There is abundant scientific evidence that climate change is real, caused by human actions, and poses a massive threat to the present and future well being of civilization on Planet Earth. 

If you have any doubts about climate change and its seriousness, please go to the effort of learning about the science involved in climate change and how it is effecting the entire world’s climate.   The following sites provide solid, scientific information written at a level that can be understood by non-scientists.

http://www.whiteearth.org/WhiteEarthScience.html   Photos that bring the point home
http://www.realclimate.org/index.php/archives/2007/05/start-here
http://www.co2now.org
http://www.pewclimate.org/global-warming-basics/about
http://www.climatecentral.org/topics/basics
http://www.climateprogress.org (blog by climate author Joseph Romm)
http://www.epa.gov/climatechange/science/index.html
http://www.skepticalscience.com
http://www.newscientist.com/topic/climate-change
http://www.google.com/landing/cop15/
http://climatechange.worldbank.org
http://climate.nasa.gov/
http://www.globalchange.gov
http://www.skepticalscience.com/  Improve your ability to respond to skeptics