An article in Treehugger looks at the energy impact of Twittering. How much does each Tweet cost in carbon footprint terms?
According to the Times, one side effect of the Eyjafjallajokull Volcano has been that carbon emissions have been cut dramatically over the past five days.
The Telegraph reports how the LibDem leader, Nick Clegg, today commited £3bn for a green jobs revolution.
And finally, Mark Lynas vowes to practise what he preaches.