National Carbon Footprint Day aims to get people started on the easily measurable eco-footprints i.e. our eco high-fives.  However, there are loads of different ways to measure your footprints and we give a sample of them below. The key thing is to get measuring and to measure your own performance improving.

Carbon Footprint Calculators

Resurgence Magazine
Act on CO2
Google
National Energy Foundation
World Wildlife Fund