Carbon footprint: effects

Global warming is caused by the emission of greenhouse gases.

72% of the emitted greenhouse gases is made up of carbon dioxide (CO2).
Carbon dioxide emissions therefore are the main cause of global warming.

CO2 is caused by burning fuels.
Oil, natural gas, diesel, organic-diesel, petrol, organic-petrol, ethanol.

Emissions of CO2 have been increasing at a rate of approximately 3% yearly for the past 50 years.
It is released to the atmosphere where it remains for 100 to 200 years.

A warming of 2ºC corresponds to an amount of 250 parts per million (ppm) carbon dioxide concentration in d environment.
As of 2007, CO2 concentration is already 380ppm.
This value raises at an average of 2-3ppm per year.
Thus the predicted critical value will be reached in approximately 20 to 30 years.

by Shu Yoong