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Wetlands in danger: we ignore ‘water factories’ at our peril

IT HAS been six years since Anglo Coal established a wetland in Mpumalanga to “offset” its encroachment on another of the province’s wetlands. Wetlands cover a mere 2.4% of South Africa’s total 122-million hectare surface area, but the benefits they deliver, from water purification to tourism, far exceed their size.

They are South Africa’s most […]

What we don’t but should know about coal fired power plants

The sum total of water required for all of the power stations is six times the equivalent volume of the Vaal dam […]

Water is the coal of the future.

It seems too good to be true that water can be used as a fuel, but in a recent paper, a fuel cell has been described which runs on water and air, in which you don’t actually “burn” water but a concentration gradient of water is established between the two electrodes, allowing entropy rather than […]