When non-expert Mark Watson announced his intention to spend the year becoming less Crap At The Environment, within 24 hours, 500 mates and fans had joined him He lived for (almost) a week without plastic He ransacked libraries in order to read frightening books on climate change He lured audiences outside to plant trees, confronted his morbid fear of bike-riding, even started eating vegetables And a man who began 2007 as a blight on the planet ended up coming to the attention of the most famous almost-president in the world, Al Gore