Seden, maybe you should keep reading the website you linked. Or is is just another "alarmist" site...
http://eo.ucar.edu/kids/green/warming6.htm
Here are some things that we know:
* Greenhouse gases (such as water vapor and carbon dioxide) act to warm Earth’s atmosphere by trapping heat and radiating some of it back toward the Earth surface. * The amount of greenhouse gases in our atmosphere is increasing. Carbon dioxide has risen more than 30 percent since people started using fossil fuels and levels are now the highest in more than 400,000 years. * Earth’s average surface temperature has risen more than 1 degree Fahrenheit (0.6 degrees Celsius) since 1900. * The amount of sea ice in the Arctic has decreased severely over the last 50 years as the ice melts. * Glaciers are melting. * Over 25 percent of the world’s coral reefs have already died due to warming oceans. * Earth will continue to warm as people use more fossil fuels and the amount of greenhouse gases increases
