As a former Beatle urges, let’s consider a simple mechanism for doing something other than taking to the streets or publishing an op-ed item–both of which we also encourage if your location and clout allow–in advance of the Climate Change conference. Why this particular mechanism? Well, to start with it is easy. Also, the impact could add up if enough of us participated. You probably already know about meat’s carbon footprint, but here is a message from Meat Free Monday to refresh your memory:

Meat production is responsible for 14.5 per cent of global greenhouse gas emissions, according to the United Nations Food and Agricultural Organization¹, with some scientists saying the percentage is higher.

Skipping meat for one day a week can reduce your annual carbon footprint by as much as not driving your car for a whole month.²

An area of Amazon rainforest the size of a hundred football pitches is cut down every hour to create room for grazing cattle.³