The average European creates 10 tonnes of CO2 per annum. The average American, 20 tonnes. To avert the dangers of Climate Change, we need to drop our CO2 production to 1 tonne per person. Problem: What is 1 tonne of CO2? How do you visualise it? Answer: You don’t! You change the metric. 1 tonne = 1 person’s annual CO2 production. 1 average person. 1 Tom. Because it’s not about saving tonnes, it’s about saving everyone. For example, a 15 minute shower is 0.1% of a Tom, driving 100 miles in a standard car is 4% of a Tom and producing 1 laptop computer is 45% of a Tom. How many Toms have you consumed? Don’t waste your Toms. Save Toms, not tonnes!