Geoengineering is an intentional attempt to cool down the Earth as well as to reduce carbon dioxide in the atmosphere.

It seems to be a promising option, but experts have divided opinion on the same. Some of the scientists are of the opinion that geoengineering is a technology that is in initial stage of development. Not only this, it has yet to be tested on global level.

There are a number of risks associated with the technology as it will deliberately try to cool the planet. There are experts who are of the belief that existing measures to reduce carbon emissions should be put to use rather than coming up novel measures.

On the other hand, there are experts who think that geoengineering is the only opinion to act as a get-out-of-jail-free. Steve Rayner of the Oxford Geoengineering Programme, UK, said that it will be beneficial to explore all the ways to reduce emission.

"Throughout human history the technologies of one generation created problems for the next. We have to find some way to deal with that; it's part of the evolution of human society", said Rayner.

Geoengineering comprises two ways. The first method is Solar Radiation Management (SRM) and the second one is known as Carbon Dioxide Removal (CDR).