http://en.wikipedia.org/wiki/Global_warmingGlobal warming is the increase in the average measured temperature of the Earth's near-surface air and oceans since the mid-20th century, and its projected continuation.
http://www.globalwarming.org/Description retrieved from the page: Cooler Heads Coalition is an international group of non-profit organizations dedicated to smarter thinking on the subject of global warming and climate change
2 - Global Warming: Early Warning Signs
http://www.climatehotmap.org/Description retrieved from the page: The Earth is heating up. The early warning signs of global climate change are in -- heat waves and warmer weather, spreading disease, earlier spring arrival, plant and animal range shifts and population declines, sea level rise and coastal flooding, coral reef bleaching, glaciers melting, Arctic and Antarctic warming, downpours, heavy snowfalls, and flooding, droughts and fires.
3 - BBC NEWS - Caution urged on climate 'risks'
http://news.bbc.co.uk/1/hi/world/6460635.stmDescription retrieved from the page: Two leading UK climate researchers say "overplaying" the global warming message risks confusing the public.
4 - GLOBE
http://www.globe.gov/r?lang=en&nav=1
5 - Global Climate Change: NASA's Eyes on the Earth
http://climate.jpl.nasa.gov/Description retrieved from the page: Global Climate Change: NASA's Eyes on the Earth. Current news and data streams about global warming and climate change from NASA's Jet Propulsion Laboratory.
6 - Nature Reports Climate Change
http://www.nature.com/climate/index.htmlDescription retrieved from the page: Nature Reports: Climate Change is an online resource from Nature providing in-depth reporting, comment and analysis on climate science and its wider implications for policy, society and the economy.
7 - The EnviroLink Network
http://www.envirolink.org/
8 - The EPA Climate Change Kids Site
http://epa.gov/climatechange/kids/index.htmlDescription retrieved from the page: EPA Climate Change Kids Page: The kids page focuses on the science and impacts of global warming or climate change, and on actions that help address climate change issues. It is designed as a resource for both kids and educators. The site also features games, events, and links to other relevant sites for kids and educators.