Water quality and availability have become matters of growing concern in South Africa. The yearly renewable freshwater supply per capita currently stands at between 1 000 m3 and 1 700 m3, but this will likely shrink to less than 500 m³ by 2025, according to the World Resources Institute.
Tag Archives | harvesting water
This massive astral power tower just won the 2010 Moon Capital International Design Challenge. Designed by Bryna Anderson, a graduate student from Columbia University, the concept is based on American physicist Dr. David Criswell’s proposal for a Lunar Solar Power System. It works by collecting energy on the lunar surface using photovoltaic converters and then […]
Aboveground Solar Still Above-ground solar still You can use stills (aboveground and belowground) in various areas of the world. They draw moisture from the ground and from plant material. You need certain materials to build a still, and you need time to let it collect the water. It takes about 24 hours to get 0.5 […]
There is always the possibility that you may find yourself unexpectedly in a survival situation one day. Water is usually the most important factor in determining whether you’ll come out alive. Solar Stills You need a digging tool, a container, a clear plastic sheet, a drinking tube, and a rock.
- What is Raw Water, and is it healthy? January 7, 2018
- Rainwater Harvesting Calculator – South Africa December 29, 2017
- Lowveld Dam Levels – Watch out for the 2017/2018 dry season March 29, 2017
- Climate Watch for South Africa March 29, 2017
- South Africa: Renewables Program Gains Momentum July 28, 2016
- Washing Machine Water Efficiency March 26, 2011
- Don’t Let your Swimming Pool Backwash Water Damage the Environment May 11, 2010
- The Use of Wind Turbines vs Solar Power in South Africa May 8, 2010
- The FIFA World Cup’s Carbon Impact June 4, 2010
- What is a Natural Swimming Pool? May 6, 2010