Personal Carbon Calculator. Calculate your emissions! The current world average is 6.5 tonnes/person, the US average is 19.8(!) tonnes/person (vs China at 4.6) and according to the UN we need to get down to1.5 tonnes/person. Please share..!
Measuring Sustainability in Agriculture: Focusing on Outcomes | The Nature Conservancy http://www.nature.org/science-in-action/science-features/measuring-sustainability-in-agriculture-focusing-on-outcomes.xml