Green Options

The appeal of shortwave, geoengineering is in it’s purportedly rapid, remediation impact (although no global experiments have been conducted yet). However, the combined climate impact of GHG increases with a geoengineered reduction in shortwave radiation is not known, but, it is feared, could result in environmental “winners” and “losers”–meaning some regions of the planet could experience severe drought, and even increased conflict over water resources.

The evaporating clay fridge is clever, cheap and does no harm to nature. Why can't more technology these days follow its example?

This smart preservation device for foodstuffs was invented in 1995 by Nigerian engineer Mohammed Bah Abba. The Pot-in-pot cooler consists of a small earthenware pot nestling inside a larger one with wet sand filling the space in between. As the water in the wet sand evaporates, it extracts heat from contents of

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