Our atmosphere traps some of solar radiation as a greenhouse, which increases the planet's temperature

in 2004, deforestation has caused 17.3% of CO2 emissions

Some consequences of deforestation :

- Global warming

-Higher temperatures

the global warming projection and the the temperature anomalies for the earth by the end of the century.

Seth Borenstein

Arctic monitoring stations show carbon dioxide levels are now above 400 parts per million. Carbon dioxide is the chief climate-change gas and stays in the atmosphere for 100 years.

RIO DE JANEIRO (AP) – The earth's environmental systems "are being pushed towards their biophysical limits," beyond which loom sudden, irreversible and potentially catastrophic changes, the United Nations Environment Program warned Wednesday.

Jonathan Watts

Money will be invested in building transport systems that will reduce greenhouse gas emissions

Fiona Harvey and Damian Carrington

Ministers attending clean energy summit in London to be gravely warned about continuing global addiction to fossil fuels

Experiments may dramatically underestimate how plants will respond to climate change in the future.

Nina Chestney

LONDON, May 8 (Reuters) - Rising carbon dioxide emissions will cause a global average temperature rise of 2 degrees Celsius by 2052 and a 2.8 degree rise by 2080, as governments and markets are unlikely to do enough against climate change, the Club of Rome think tank said.