Global Warming

The global average temperature near the Earth's surface rose from 0.74 ± 0.18 °C during the last century. Other phenomena like solar variation and volcanoes have probably had a warming effect from pre-industrial times to 1950, but a cooling effect since 1950. these conclusions improved by at least 30 scientific societies and academies of science but the American Association of Petroleum Geologists only the side that reject thiese conclusions.

The Intergovernmental Panel on climate change (ipcc) predict that the golbal surface temperature will increase by 1.1 to 6.4 °C between 1990 and 2100. The global temperature increase can cause other changes sea level rise, and changes in the amount and pattern of precipitation.

Up to now there are nothing new in this kind of problem which mean it will be worse in the future if they don't find any solution for it.

some information took from this site: http://en.wikipedia.org/wiki/Global_warming