If you’re into that sort of thing, don’t forget to join in with the world’s pre-eminent celebration of environmental tokenism this Saturday night when “Earth hour” takes place.

If on the other hand you want to do something meaningful and real about reducing CO2 emissions, may I suggest:

• drive your car less^**
• buy a smaller more fuel efficient car
• avoid or minimise air travel
• buy less stuff

^**A quick calculation for my household shows that one ‘earth hour’ of turning off electrical appliances equates to a reduction of only 0.5kg CO2 emissions. This is the amount of CO2 produced by driving just 2km in our car. Every day I ride a bike to work instead of driving is equivalent to 4 earth hours.

[This content was originally posted to Google Buzz, #124]