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Global Warming - Natural Cycle, or Human-Influenced?

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Is global warming a natural cycle? Or is global warming affected by human influence? What does the science say? Both are true. In the natural cycle, the world can warm, and cool, without any human interference. For the past million years this has occurred over and over again at approximately 100,000 year intervals. About 80-90,000 years of ice age with about 10-20,000 years of warm period, give or take some thousands of years.

The difference is that in the natural cycle CO2 lags behind the warming because it is mainly due to the Milankovitch cycles. Now CO2 is leading the warming. Current warming is clearly not a natural cycle.

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Climate Change Linked to Disappearance of Ice Free Regions in Antarctica

      

Climate Change Linked to Disappearance of Ice Free Region Polynya in Antarctica (Photo : NASA via Reuters, file)

CLICK HERE - STUDY - Cessation of deep convection in the open Southern Ocean under anthropogenic climate change

scienceworldreport.com - March 4, 2014

A team of international scientists says that climate change is responsible for the recent disappearance of the ice free regions known as polynya in the Antarctica. . .

. . . However, the new study led by researchers at McGill University claims that the Weddell polynya of the 1970s may have been the last event, of what was earlier a common feature of southern Ocean, and is currently suppressed due to the effects of the accelerating climate change on the salinity of the ocean.

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Global Riot Epidemic Due to Demise of Cheap Fossil Fuels

      

A protester in Ukraine swings a metal chain during clashes - a taste of things to come? Photograph: Gleb Garanich/Reuters

submitted by Mikayla McDonald

From South America to South Asia, a new age of unrest is in full swing as industrial civilisation transitions to post-carbon reality

theguardian.com - by Nafeez Ahmed - February 28, 2014

If anyone had hoped that the Arab Spring and Occupy protests a few years back were one-off episodes that would soon give way to more stability, they have another thing coming. The hope was that ongoing economic recovery would return to pre-crash levels of growth, alleviating the grievances fueling the fires of civil unrest, stoked by years of recession. . .

. . . The recent cases illustrate not just an explicit link between civil unrest and an increasingly volatile global food system, but also the root of this problem in the increasing unsustainability of our chronic civilisational addiction to fossil fuels. . .

. . . Of course, the elephant in the room is climate change.

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Doctors Without Borders Expelled from Myanmar

      

Myanmar protesters hold placards and shout slogans during a rally against the Doctors Without Borders (MSF) aid agency in Sittwe, Rakhine state, on February 22, 2014 (AFP/File)

ap.org - by Margie Mason - February 28, 2014

YANGON, Myanmar (AP) — Doctors Without Borders said Friday it has been expelled from Myanmar and that tens of thousands of lives are at risk. The decision came after the humanitarian group reported it treated nearly two dozen Rohingya Muslim victims of communal violence in Rakhine state, which the government has denied.

The humanitarian group said it was "deeply shocked" by Myanmar's decision to expel it after two decades of work in the country.

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CLICK HERE - MSF - Myanmar: MSF concerned about the fate of thousands of patients after being ordered to cease activities

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There Never Was a Pause in Global Warming or Climate Change

Climate scientist Professor Matt England explains his study on the influence of Pacific trade winds on global temperatures

All signs point to an acceleration of human-caused climate change. So why all this talk of a pause?

CLICK HERE - STUDY - Recent intensification of wind-driven circulation in the Pacific and the ongoing warming hiatus

theguardian.com - by Graham Readfearn - February 11, 2014

The idea that global warming has "paused" or is currently chillaxing in a comfy chair with the words "hiatus" written on it has been getting a good run in the media of late.

Much of this is down to a new study analysing why one single measure of climate change – the temperatures on the surface averaged out across the entire globe – might not have been rising quite so quickly as some thought they might.

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Steven Chu, Secretary of the Dept of Energy on Melting Permafrost and Methane Hydrate Releases

Nobel Physicist and US Energy Secretary Steven Chu describes the potential global warming feedback from melting permafrost and methane.

https://www.youtube.com/watch?v=oHqKxWvcBdg&list=PLF48ACB853C81076A

November 30, 2010

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Arctic Seafloor Methane Releases Double Previous Estimates

      

Methane burns as it escapes through a hole in the ice in a lagoon above the East Siberian Arctic Shelf. 
Credit: Natalia Shakhova
 
 

sciencedaily.com - University of Alaska Fairbanks - November 25, 2013

The seafloor off the coast of Northern Siberia is releasing more than twice the amount of methane as previously estimated, according to new research results published in the Nov. 24 edition of the journal Nature Geoscience.

The East Siberian Arctic Shelf is venting at least 17 teragrams of the methane into the atmosphere each year. . .

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New Maps Reveal Locations of Species at Risk as Climate Changes

      

Speed and direction of climate shifts over the past 50 years in Australia.  Credit: Image - CSIRO Australia
 
sciencedaily.com - CSIRO Austrailia - February 10, 2014

In research published today in the journal Nature, CSIRO and an international team of scientists revealed global maps showing how fast and in which direction local climates are shifting. This new study points to a simpler way of looking at climatic changes and their likely effects on biodiversity.

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CLICK HERE - RESEARCH - Nature - Geographical limits to species-range shifts are suggested by climate velocity

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Deadly MERS Virus Circulates Among Arabian Camels

      

Jockeys take their camels home after racing in Egypt's El Arish desert. The annual race draws competitors from around the Middle East, including Saudi Arabia, where camels carry the Middle East Respiratory Syndrome virus.  Nasser Nouri/Xinhua /Landov

CLICK HERE - mBio STUDY
Middle East Respiratory Syndrome Coronavirus Infection in Dromedary Camels in Saudi Arabia

npr.org - by Richard Knox - February 25, 2014

Scientists have gotten close to pinning down the origin of Middle East Respiratory Syndrome, a dangerous respiratory disease that emerged in Saudi Arabia 17 months ago.

It turns out the MERS virus has been circulating in Arabian camels for more than two decades, scientists report in a study published Tuesday.

So far MERS has sickened more than 180 people, killing at least 77 of them — an alarming 43 percent.

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Is Weird Winter Weather Related to Climate Change?

NASA Goddard Space Flight Center
The polar jet stream may be driving a "hemispheric pattern of severe weather."

submitted by Paul Pritchard

e360.yale.edu - by Fred Pearce - February 24, 2014

Scientists are trying to understand if the unusual weather in the Northern Hemisphere this winter — from record heat in Alaska to unprecedented flooding in Britain — is linked to climate change. One thing seems clear: Shifts in the jet stream play a key role and could become even more disruptive as the world warms.

This winter’s weather has been weird across much of the Northern Hemisphere. Record storms in Europe; record drought in California; record heat in parts of the Arctic, including Alaska and parts of Scandinavia; but record freezes too, as polar air blew south over Canada and the U.S., causing near-record ice cover on the Great Lakes, sending the mercury as low as minus 50 degrees Celsius in Minnesota, and bringing sharp chills to Texas.

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