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Effective today, The ROBERT | CHARLES Group is discontinuing our postings and links to content and news for investing in worldwide cap and trade and sustainable energy markets. This blog will be phased out in the coming days and weeks.

Sunday, March 4, 2012

Lessons on farming and energy from collapsed civilizations

Farming and energy: lessons from collapsed civilizations | Andrew Simms | Environment | guardian.co.uk

Renewable energy technologies and agro-ecological farming represent opportunities to avoid the mistakes of the past.
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