- Carbon Footprint from the Welsh Assembly Government, available bilingually (Welsh and English)
- The Food Carbon Footprint Calculator looks only at your food. It also offers personalised and practical ways to reduce the carbon footprint of your diet, reducing your impact on climate change.
- The WWF carbon footprint calculator
- 'Myfootprint' - American carbon calculator but available in several languages (Chinese, Spanish, French, Russian, English)
26 January 2009: Meat and dairy products could be taken off NHS menus for carbon footprint reasons - see this article. Good news for the environment, human health, and animals!