Climate change is probably the world’s biggest distraction and not its biggest and most immediate challenge, which belongs to clean water, says Professor Grant Cawthorn.
Cawthorn, Wits University’s School of Geosciences Platinum Industry Igneous Petrology professor, contends that the lack of fresh water will have a much greater global impact than a “one or two degree” temperature rise.
In a public climate-change lecture delivered to a packed Origins Centre audience in Johannesburg, Cawthorn singled out clean water as the “world’s most imminent challenge”, pollution as the “world’s biggest single over-riding problem” and slammed climate change as “the world’s biggest distraction”.
He recalls that eight of the world’s top economists, including four Nobel laureates, put Kyoto at the bottom of their Copenhagen consensus better-world priority list “because it would cost a great deal and do little good”.
Although he concedes that “we have to do something about climate change in the long term”, he contends that clean water and global-scale pollution are of more immediate concern.
“The trick is to worry about the right things first,” he says.
“Provided we don’t push the limits too far, nature will come up with ways of dealing with the carbon dioxide,” he contends in a Mining Weekly Online video interview.
“Nature is incredibly benevolent and will actually help to solve our problems, but it may take a longer time than humans want to wait for, so we have to be responsible and react as well,” he adds.
Water footprints and perhaps even plastic footprints should be measured and not just carbon footprints.
He also decries recycling as inadequate.
“We’re encouraged to recycle. I disagree totally. Manufacturers should be forced to make products that can be repaired, reused, refilled and then, only as a last resort, recycled.
“We’re generating a vast quantity of plastic pollution. We live in a throw away society and that is going to destroy the world,” he adds.
Source: Engineering News
While the seriousness and consequences of climate change and global warming should not be dismissed, perhaps it is time to start dealing with the issues facing us now. There seem to be endless conventions, talks and agreements regarding climate change, costing millions of dollars, but very little action. Prof. Cawthorn has a valid point, especially in South Africa where water scarcity and water pollution are huge problems. We should be implementing rainwater harvesting projects and greywater recycling at a much higher rate. Rainwater harvesting need not be complicated; poor communities can collect rainwater using simple guttering and a water tank beneath the eaves. Education is key and health issues such as boiling/disinfecting/filtering rainwater are important to prevent illness (rainwater is pure and clean but rooftops can contaminate it).
Recycling can actually use more energy than it’s ecologically viable, read Recycling vs. Reusing: is there a difference?
Rainwater harvesting and greywater recycling can also be used as tools to assist water quality management (and for reducing water scarcity) through less water entering our stormwater drains and sewage works respectively. Water conservation systems also help to improve water security– an acute problem in South Africa. Water Rhapsody Mpumalanga’s WWF Award-winning water conservation products include water tanks (we are authorized South African JoJo Water Tank dealers and Atlas Plastics water tank suppliers), rainwater harvesting systems, rainwater tanks, grey water recycling systems, water-saving toilet flush mechanisms, swimming pool backwash recycling systems and other water saving devices. Water and energy are linked and thus we have incorporated Yes Solar Mpumalanga (solar energy is ideal for the Lowveld, with Nelspruit having one of the highest irradiation rates in South Africa!). Yes Solar is an official distributor for German-made Solsquare products that include a wide range of high quality solar panels, solar water heating systems, solar geysers and specific solar solutions customized to your needs. Solsquare solar water geyser systems are Eskom-approved and are installed by Eskom-accredited solar installers (eligible for Eskom renewable energy rebate programme).
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