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Leader in certified carbon offsets; join over 600000 individuals & 1800 businesses fighting climate change. Carbon offsets for indiv/business/products » Carbon Offsets » Calculator » Carbon Neutral.

HowStuffWorks Science has explanations and colorful illustrations related to earth science, life science, and other wonders of the physical world.

The Carbon Offset Research & Education Initiative (CORE) provides information about carbon offset markets to policy makers, analysts, consumers, companies and institutions

Protecting Nature, Preserving Life

The Gold Standard Foundation

Dictionary.com - the largest and most trusted free online dictionary. Instantly look up accurate and extensive definitions and word meanings, and hear audio pronunciations.

The Natural Resources Defense Council works to protect wildlife and wild places and to ensure a healthy environment for all life on earth.

Fight global warming by reducing your carbon footprint today - TerraPass helps individuals easily and affordably balance their environmental impact

Triple Bottom Line Reporting for Green and Sustainable Business. A conversation for entrepreneurs, intrapreneurs and MBA students on green business and building a new economy

Nature - the world