Tag Archives | grey water systems

gray water tanks

Types of simple greywater systems

Greywater recycling systems in conjunction with rainwater tanks can save huge quantities of water which is especially important in water scarce nations such as South Africa. When using laundry water, ensure that eco-friendly, phosphate-free detergents are used. And remember the golden rule: never store grey water in drums or water tanks for more than 24 […]

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What Is ‘Desertification’ And Why Is It Important To Know About?

Dear EarthTalk: Can you explain what “desertification” is and why it is an important environmental issue?

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Groundwater Overuse May Make Arsenic More Common in South Asian Wells

A century of exploitation of groundwater supplies has drawn down water tables across Vietnam, making it difficult to avoid water contaminated with arsenic even at deeper depths, according to a new study. In tests of 512 private wells reaching depths of 10 to 50 meters (33 to 164 feet), researchers found that 27 percent contained […]

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High-tech and low-carbon travel trends for 2011

Last week, we began our gaze into the travel crystal ball for a glimpse of what the new year will bring. We focused on where we’ll be going and how much it will cost us to get there. This week we’ll focus on two trends: the technology making life easier – or more confusing – […]

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Climate changes tied to fall of Roman Empire

A look back 2,500 years at how climate and society have been intertwined A prolonged period of wet weather spurred the spread of the bubonic plague in medieval times, according to a new study. And a 300-year spell of unpredictable weather coincided with the decline of the Roman Empire.

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SA scientists seek backers for trash-to-energy innovation

Scientists and engineers at the University of the Witwatersrand, in Johannesburg, have developed a hybrid energy solution, based on the Fischer-Tropsch (FT) chemical process, which could be deployed at municipal rubbish dumps to produce both electricity and transport fuels from fresh garbage. Centre of Material and Process Synthesis (COMPS) director Professor Diane Hildebrandt tells Engineering […]

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Retailers check water usage

Shoprite Checkers, Woolworths and Pick n Pay, have expressed concern over speculation that a water crisis is looming in South Africa. The three major retailers say they have put in place rigorous measures to ensure their products are safe for consumption and are free of any potential contamination from polluted water supplies.

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SA sets targets for 2011 climate talks

With the recent United Nations (UN) Climate Change Conference in Mexico not having addressed a number of key issues, months of hard work lie ahead for South Africa – the host of the 2011 conference. Outlining the outcomes of the recent climate change conference in Cancun, Mexico, Minister of Water and Environmental Affairs Edna Molewa […]

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Ten “Buy/Don’t Buy” Rules for Greener Shopping

TEN “BUY/DON’T BUY” RULES FOR GREENER SHOPPING… Make “green” shopping easier this holiday season by following the ten straightforward rules below. 1) Don’t buy anything that requires a throwaway battery. Batteries leak cadmium, lead and other heavy metals when they’re thrown away. They usually come wrapped in plastic and cardboard, creating more trash as soon as you […]

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