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Policies are critical for the invisible fuel

Though 2015 was a record year for renewables, there is another energy technology that is making steady – but quiet – progress in limiting greenhouse gas emissions: energy efficiency. Managing how much energy we use is a vital tool in…

Energy Efficient Prosperity: Green Buildings

A couple of years ago, the Ngewana family sat around the kitchen table of their Cape Town home and set themselves a target: over the next six months, they would try to cut their electricity use by 40% by retrofitting…

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