Thursday, 30 September 2010

There are three major differences between renewable and non-renewable resources. Renewable resources are free, they do not deplete the earth's resources and they do not contribute to the pollution of the planet. By contrast, non-renewable resources cost money and are becoming increasingly expensive. Non-renewable resources use-up the the earth's resources and are major contributors to pollution and global warmingRead more ...The Renewable Energy Handbook, Revised Edition: The Updated Comprehensive Guide to Renewable Energy and Independent Living

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