Understanding the mechanism and implication of these effects is another crucial research step, and a difficult one to take at the moment because it is hard to assess the results from one paper on geoengineering in the light of another.

ECONOMIST: Geoengineering

The establishment of the G20 is a huge step forward, on the one hand the more countries around the roundtable the more difficult it is to reach a consensus, but on the other hand the better the decisions being taken.

FORBES: Dmitry Medvedev's Davos Keynote: Complete Transcript

One difficult step those fledgling reporters will have to take is handling the relationship with the press officers and media relations teams at their local council.

BBC: The fight for a right to report