je.st
news
Tag: change climate
Climate Change Future Suggested by Looking Back 4 Million Years
2013-04-03 19:45:00| Climate Ark Climate Change & Global Warming Newsfeed
Scientific American: The last time the Earth enjoyed greenhouse gas levels like those of today was roughly 4 million years ago, during an era known as the Pliocene. The extra heat of average temperatures as much as 4 degrees Celsius warmer turned the tropical oceans into a nice warm pool of bathwater, as noted by new research published in Nature on April 4. By analyzing the ratio of magnesium and calcium in the shells of microscopic animals found in long cores of mud from the deep ocean, the researchers confirmed...
Tags: back
years
change
future
Canada: Tree death toll from climate change likely underestimated
2013-04-03 17:38:00| Climate Ark Climate Change & Global Warming Newsfeed
CBC: Climate change is likely killing more trees in the boreal forest than predicted, a new Canadian study suggests. Models that predict the impact of climate change typically assume that older forests are representative of all forests. But older forests are less vulnerable to the effects of climate change than younger forests that make up the vast majority of Canada's boreal forest ecosystems, suggests a study of Alberta and Saskatchewan forests by Yong Luo and Han Chen, forest ecologists at Lakehead...
Tags: change
canada
death
tree
Economist warns of 'radical' climate change, millions at risk
2013-04-03 11:54:00| Climate Ark Climate Change & Global Warming Newsfeed
Agence France-Presse: The author of an influential 2006 study on climate change warned Tuesday that the world could be headed toward warming even more catastrophic than expected but he voiced hope for political action. Nicholas Stern, the British former chief economist for the World Bank, said that both emissions of greenhouse gas and the effects of climate change were taking place faster than he forecast seven years ago. Without changes to emission trends, the planet has roughly a 50 percent chance that temperatures...
Tags: change
risk
millions
climate
Climate change making extreme events worse in Australia report
2013-04-03 10:56:00| Climate Ark Climate Change & Global Warming Newsfeed
Guardian: The extreme heatwaves, flooding and bush fires striking Australia have already been intensified by climate change and are set to get even worse in future, according to a new report. Only fast and deep cuts to carbon emissions can start to reverse the trend, say scientists from the Climate Commission, an independent advisory group set up by the Australian government. "Climate change is making many extreme events worse in terms of their impacts on people, property, communities and the environment,"...
Tags: report
change
events
making
Australia: Climate change report a wake-up call: Combet
2013-04-03 10:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Australian Broadcasting Corporation: Climate Change Minister Greg Combet says a new report is a wake-up call to those who deny global warming is a problem. The Climate Commission's latest report warns that of extreme weather in Australia. The report, which has been backed by Australia's top climate scientists and science bodies, says that in some cases Australia's climate has shifted permanently. Mr Combet says the report underpins the reason why the Government has put a price on carbon. "These are things that people in...
Tags: report
change
call
australia
Sites : [768] [769] [770] [771] [772] [773] [774] [775] [776] [777] [778] [779] [780] [781] [782] [783] [784] [785] [786] [787] next »