Individuals can make a difference by reducing their personal greenhouse gas emissions. There are many ways to do this and save energy...

Your carbon footprint is the amount of greenhouse gases—including carbon dioxide, methane, nitrous oxide, fluorinated gases and others—that you produce as you live your life. Calculate your carbon footprint at carbonfootprint.com

Click to read the article at Earth Institute/Columbia University

Measurement of life-cycle greenhouse gas emissions involves calculating the global-warming potential of electrical energy sources through life-cycle assessment of each energy source. The findings are presented in units of global warming potential per unit of electrical energy generated by that source. The scale uses the global warming potential unit, the carbon dioxide equivalent (CO2e), and the unit of electrical energy, the kilowatt hour (kWh). The goal of such assessments is to cover the full life of the source, from material and fuel mining through construction to operation and waste management.

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