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Climate Change, Not Human Activity, Led to Megafauna Extinction

2013-05-07 03:26:00| Climate Ark Climate Change & Global Warming Newsfeed

ScienceDaily: Most species of gigantic animals that once roamed Australia had disappeared by the time people arrived, a major review of the available evidence has concluded. The research challenges the claim that humans were primarily responsible for the demise of the megafauna in a proposed "extinction window" between 40,000 and 50,000 years ago, and points the finger instead at climate change. An international team led by the University of New South Wales, and including researchers at the University of...

Tags: change human activity led

 

Fast-Moving Climate Zones Are Speeding Extinction

2013-04-30 12:30:00| Climate Ark Climate Change & Global Warming Newsfeed

Climate News Network: As global temperatures rise, climate zones will shift at greater speed, according to new research in Nature Climate Change. If greenhouse gas emissions carry on increasing, then about 20 percent of the land area of the planet will undergo change -- and the creatures that have made their homes in what were once stable ecosystems will have to adapt swiftly, or face grim consequences. Heading for extinction? Rising temperatures are heightening the risk say researchers. "The warmer the climate...

Tags: climate zones extinction speeding

 
 

Human extinction warning from Oxford

2013-04-24 01:01:23| BBC News | Business | UK Edition

How are humans going to become extinct?

Tags: human warning oxford extinction

 

Human extinction warning from Oxford

2013-04-24 01:01:00| Climate Ark Climate Change & Global Warming Newsfeed

BBC: What are the greatest global threats to humanity? Are we on the verge of our own unexpected extinction? An international team of scientists, mathematicians and philosophers at Oxford University's Future of Humanity Institute is investigating the biggest dangers. And they argue in a research paper, Existential Risk as a Global Priority, that international policymakers must pay serious attention to the reality of species-obliterating risks. Last year there were more academic papers published...

Tags: human warning oxford extinction

 

Extinction debt suggests endangered species are doomed

2013-04-17 16:39:00| Climate Ark Climate Change & Global Warming Newsfeed

New Scientist: From dragonflies to bears, when it comes to lost species we ain't seen nothing yet. Biologists are getting rattled about growing evidence of "extinction debt" - the idea that there is a delay of decades or even centuries between humans damaging ecosystems and the demise of species that live there. In the largest extinction debt study to date, Stefan Dullinger of the University of Vienna, Austria, ranked 22 European countries according to the proportion of domestic species classed as endangered...

Tags: suggests debt species extinction

 

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