Dr Rajendra Pachauri heads the Intergovernmental Panel on Climate (IPCC), told the meeting in Cancun said "should be to stop the rise in average global temperature will have to look at geoengineering, says publication of the Telegraph.
Margins are narrow and should provide solutions to combat this phenomenon.
Global warming is most visible and should take more drastic measures to reduce greenhouse gas emissions.
The Dr Rajendra Pachauri, said that scientists are considering installation of solar mirrors in space to reflect sunlight.
Besides, considering the spray of the sea surface in quantities of iron, in order to create suitable conditions for growth of plankton to absorb carbon dioxide from the atmosphere.
At the Cancun meeting of representatives from over 190 countries and conducted in the hotel Moon Palace.
The purpose of the meeting is to reach a binding agreement to reduce greenhouse gas emissions.
The Dr Pachauri pointed out that if you continue to increase greenhouse gas emissions, the consequences will be disastrous for humans, nature and the world at large.
Climate change is a fact and requires global effort to avoid catastrophic consequences for the planet.