Gravity Light

Gravity Light: Our Renewable Energy Future

Guest essay by Eric Worrall What could be better for providing light in a poor country with no electricity than a cheap kerosene lamp? A group of renewable entrepreneurs think they have found the answer – meet Gravity Light, a third world LED lighting system powered by lifting a bag containing 12Kg (27lb) of rocks…

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Arizona Professor: Forget Climate, Humans "Don't Have 10 Years"

Guest essay by Eric Worrall Professor-emeritus Guy McPherson of University of Arizona, speaking in New Zealand, thinks we don’t have to worry about climate change, because the “6th mass extinction” will finish us all off in the next 10 years. Humans ‘don’t have 10 years’ left thanks to climate change – scientist There’s no point…