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

No reason to doubt that human activity is warming the planet

Posted by: Saving Water SA (Cape Town, South Africa) – partnered with Water Rhapsody conservation systems – 09 May 2011

Yet another scientific body has jumped in to the so-called Climategate fray to dispute that the leaked documents offer any reason to doubt that human activity is warming the planet.

Evidence for human induced climate change continues to grow

Back in 2009, as you may recall, a number of e-mails and documents related to climate research were leaked following a server breach at the Climatic Research Unit at the University of East Anglia (UEA) in England. Climate skeptics, poring through the correspondence, latched on to a number of emails that they claimed undermined the scientific case for human-caused climate change, including the widely publicized assessments of the Intergovernmental Panel on Climate Change (IPCC). The climate scientists, skeptics alleged, manipulated data and used underhanded methods to block the publication of conflicting research.

But those skeptical claims have been roundly debunked. First, UEA asked two independent review panels to assess the evidence. Both reviews were completed in 2010 and found no evidence for scientific malpractice. The panels’ reports did make important recommendations about making climate science more transparent, but as the one of those reports concluded, “we did not find any evidence of behaviour that might undermine the conclusions of the IPCC assessments.” The Parliamentary Science and Technology Committee in turn issued two reports on the UEA reviews, broadly accepting the panels’ recommendations for greater openness and transparency. Continue reading No reason to doubt that human activity is warming the planet

Higher sea level rise projected

Posted by: Saving Water SA (Cape Town, South Africa) – partnered with Water Rhapsody conservation systems – 03 May 2011

World sea levels could rise by between 0.9 and 1.6 metres (2ft 11in to 5ft 3in) this century, stoked by accelerated climate change in the Arctic, a study showed on Tuesday.

Antarctica contains enough ice to raise sea levels by about 57 metres if it ever all melted.

The projection, by the Arctic Monitoring and Assessment Programme, is higher than most past estimates including a 2007 report by the Intergovernmental Panel on Climate Change (IPCC), the main U.N. scientific group.

Rising sea levels are a threat to cities from New York to Buenos Aires, coasts from the Netherlands to China and low-lying islands in the Pacific or Indian Oceans.

Following is a history of sea level rise and projections:

History – Sea levels rose about 120 metres (almost 400 ft) after a thaw at the end of the last Ice Age about 21,000 years ago released vast amounts of water frozen on land.

Sea levels stabilised about 2,000 to 3,000 years ago, with “no significant change from then until the late 19th century”, the IPCC said in 2007. During the 20th century, they rose about 17 cms. Since 1993, rates have accelerated to about 3 mm per year. Continue reading Higher sea level rise projected