"These latest initiatives will not only help employees and visitors to travel to our Benhall site in a more environmentally-friendly way, but will also help reduce the pressures on those living nearby, something we are always keen to do, " said a GCHQ spokesman.

BBC: GCHQ plans upgrade to Benhall transport

As a job with zero commuting, blogging could be one of the most environmentally friendly jobs around -- but it can also be quite profitable.

WSJ: America's Newest Profession: Blogging – Mark Penn, WSJ.com

The group will also look at applying their algorithms to electricity grids, to make them work better with environmentally friendly but unreliable sources of power.

ECONOMIST: Artificial intelligence