Climate Change

Natural factors such as volcanic eruptions, changes in the Earth's orbit, and the amount of energy released from the Sun have affected the Earth's climate. For over the past 200 years the burning of fossil fuels like coal and oil and the direct effect deforestation have caused the concentrations of heat trapping greenhouse gases to increase, abnormally, in our atmosphere. the greenhouse gases prevent heat from escaping to space, somewhat like the glass panels of a greenhouse; hence the name. Effects of the cliamte change
include sea level rise, shrinking glaciers, changes in the range and distribution of plants and animals, trees blooming earlier, lengthening of growing seasons, ice on rivers and lakes freezing later and breaking up earlier, and thawing of permafrost.
http://www.epa.gov/climatechange/basicinfo.html, last updated: Thursday, May 20, 2010 Author: US EPA

This website is dedicated to the Nature Conservancy and how that organization has began implementing ways to "tackle" global warming to ensure that future generations will have a planet to live on. They are working to reduce the accumulation of heat-trapping gases in the atmosphere and help natural areas adjust to the impact of climate change. The conservancy is doing three major things to help 1. reducing emmions from deforistation 2. helping natual areas adapt to the impacts of climate change and 3.supporting policies to reduce emmsions.
http://www.nature.org/initiatives/climatechange/, last updated: April 30, 2009 author: The Nature Conservancy (the only name i found on the site was the copyright agent: Susan Lauscher)