Specialising in
Grey Water
and
Rainwater Harvesting systems in South Africa .

Shocking ecosystems spur water crisis

Posted by: Saving Water SA (Cape Town, South Africa) – partnered with Water Rhapsody conservation systems – 22 March 2011

By: Duncan Alfreds

The ecosystems in SA are under threat and unless something is done urgently, the country will face a water crisis, a researcher has found.

Up to 85% of our estuaries are critically endangered .

“Our ecosystems are in a shocking state,” CSIR researcher Dr Jeanne Nel told News24 at the World Water Day 2011 conference in Cape Town.

Nel’s remarks at the conference were underpinned by the water report by the CSIR and released to the public. It showed that water ecosystems were under threat from a variety of factors, including development and industry.

“Up to 85% of our estuaries are critically endangered and in the past five years we’ve been able to map the zone of an estuary. Our big systems are in trouble,” she said.

Estuaries form the transition ground between river and ocean environments and play a critical role in managing the marine ecosystem, but they are also sensitive to ecological damage from farming or industry. Continue reading Shocking ecosystems spur water crisis

Some estuaries and deltas improving

Posted by: Saving Water SA (Cape Town, South Africa) – partnered with Water Rhapsody conservation systems – 05 June 2010

With new research showing that the overall position of the world’s estuaries and deltas is starting to improve, WWF today announced the formation of a World Estuaries Alliance (WEA) to further advance and protect one of the most vital of ecosystems.

An estuary is a physically and chemically dynamic and complex ecosystem

“Where the rivers meet the sea has always been one of the most important of habitats for humanity, but we have done enormous damage to the vibrant life in estuaries,” said WWF International Director General James Leape in his World Environment Day announcement of the WEA in Shanghai, China.

“Now, the tide is coming in again. In many estuaries and deltas, species abundance is going up and pollution is going down. Where we have curbed our instincts to clear natural features for development or navigation, fisheries are returning.

“But some estuaries, particularly in the tropics, are not experiencing the same improvements, and the growing impacts of climate change are threatening to undo some of our progress. We need to work together to advance the best thinking in sustainable estuary development and protection.”

According to recently published historical reconstructions, species abundance in 12 temperate estuaries had declined to 25 to 45 per cent of pre-industrial levels by 2000, largely due to human interventions in river systems and estuaries. Continue reading Some estuaries and deltas improving

Heavy minerals mining in environmentally sensitive habitat

Posted by: Saving Water SA (Cape Town, South Africa) – partnered with Water Rhapsody conservation systems 04 February 2010

THE proposed heavy minerals mining project at Xolobeni on the Wild Coast was located in one of the “most environmentally sensitive habitats” ever investigated for mining in the country, says soil fertility expert Jan Meyer.