Showing posts with label top of the world. Show all posts
Showing posts with label top of the world. Show all posts
Saturday, September 6, 2014
Video - Arctic Emergency: Scientists on Melting Arctic Ice
In this video climate scientists address how rising temperatures in the Arctic are contributing the melting sea ice, thawing permafrost, and destabilization of a system that has been called "Earth's Air Conditioner". They make the point that global warming is here and is impacting weather patterns, natural systems, and human life around the world - and the Arctic is central to these impacts.
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Tuesday, March 11, 2014
Implications of Arctic Heat: Less Ice and More Global Warming
The Arctic continues to warm and ocean sea ice continues to retreat at an alarming pace. This has dramatic implications that are both global and local. Arctic ice has been both retreating and thinning in volume for four decades.
As reported in the Ecologist, the latest study by Stroeve et al. from the University College London, was published in Geophysical Research Letters. This study shows that the ice-free period is increasing by 5 days every decade. In some regions of the Arctic, the autumn freeze is now up to 11 days later every decade.
The research examined satellite imagery of the Arctic for the last 30 years. They found that the ice is melting and the increasing exposure to sunlight means that greater quantities of energy are being absorbed by the Earth.
As reported in the Ecologist, the latest study by Stroeve et al. from the University College London, was published in Geophysical Research Letters. This study shows that the ice-free period is increasing by 5 days every decade. In some regions of the Arctic, the autumn freeze is now up to 11 days later every decade.
The research examined satellite imagery of the Arctic for the last 30 years. They found that the ice is melting and the increasing exposure to sunlight means that greater quantities of energy are being absorbed by the Earth.
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Wednesday, February 19, 2014
Alaska's Record Breaking Heat in January Offers More Evidence for a Dramatically Warmer Arctic
While the continental US was being slammed with a succession of cold spells and winter storms in January, Alaska was experiencing some of the hottest temperatures ever recorded for the month. Temperatures were as much as 40°F (22°C) above normal. The all-time warmest January temperature ever observed in Alaska was tied on January 27 when the temperature peaked at 62°F (16.7°C) in Port Alsworth.
The NASA map (above left) shows the temperature anomalies in Alaska for January 23–30, 2014. Those areas which experienced higher than average temperatures compared to the 2001–2010 average for the same week are highlighted in red. The map is based on data from Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite.
The NASA map (above left) shows the temperature anomalies in Alaska for January 23–30, 2014. Those areas which experienced higher than average temperatures compared to the 2001–2010 average for the same week are highlighted in red. The map is based on data from Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite.
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Tuesday, February 11, 2014
Save the Arctic from a "Death Spiral"
In last 30 years, we’ve lost as much as three-quarters of the floating sea ice cover at the top of the world. Satellite images reveal that the volume of that summer sea ice in the Arctic has shrunk so fast that scientists say it’s now in a ‘death spiral’. Due to human activities, primarily the burning of fossil fuels, the Arctic may soon be ice free in the summer for the first time in over 800,000 years.
This will be devastating for polar bears, narwhals, walruses and other species that live there. It will also have profoundly destructive consequences for people all around the world as the Arctic helps to regulate global weather patterns and as a consequence has a powerful impact on global agriculture.
This will be devastating for polar bears, narwhals, walruses and other species that live there. It will also have profoundly destructive consequences for people all around the world as the Arctic helps to regulate global weather patterns and as a consequence has a powerful impact on global agriculture.
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Sunday, December 8, 2013
Talk - The Race to the North Pole: Climate Change and Biodiversity in Canada
The race to the North Pole: climate change and biodiversity in Canada will take place on Wednesday, December 11, 2013, at the University of Ottawa, Biosciences Complex – RM 140, 30 Marie Curie St., Ottawa, Ontario. The reception will take place at 6 pm and the presentation will commence at 7 pm. Parking is available in parking lot V (In front of Marion Hall). The Faculty of Science at the University of Ottawa is pleased to invite National Capital Region community members to this special evening with Department of Biology professor Jeremy Kerr (BSc ’93 – Biology).
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Saturday, October 19, 2013
Video - Richard Branson on the Need to Protect the Arctic
In this video, Richard Branson, explains why we all have to do everything within our power to protect the Arctic.
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Video - The Arctic is Under Threat from Shell and Gazprom
The fossil fuel companies Shell and Gazprom have ambitious plans to exploit the Arctic's oil and gas reserves. Scientists have made it clear that to avoid the worst impacts of a hot planet (ie 6 degree temperature increase) we must leave the vast majority of carbon reserves underground. Arctic drilling increases global warming and imperils Arctic ecology. We know that drilling for oil and gas inevitably leads to spills. To make matters worse Gazprom's old and outdated drilling equipment present an elevated level of risk. Drilling in the Arctic will devastate the region's fragile ecosystem which is already suffering from a warming world.
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Saturday, September 14, 2013
Video - The Global Implications of Rapid Climate Change in the Arctic
Paul Beckwith is a part time professor at the University of Ottawa and a post graduate studying and researching abrupt climate change, with a focus on the arctic.
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Friday, August 16, 2013
Geothermal Heating Accelerating Greenland's Ice Melt
Everyone who follows the issue of melting ice knows that Northern ice is melting, but a new study shows that it is not only melting from above due to global warming, it is also melting from below. The fact that the ice is melting from above and below has important implications for scientific models.
The international research initiative IceGeoHeat led by the GFZ German Research Centre for Geosciences published their research in Nature Geoscience. The continental ice sheets play a central role in climate. GFZ scientists Alexey Petrunin and Irina Rogozhina have created a model which calculates ice melt from geothermal forces.
The international research initiative IceGeoHeat led by the GFZ German Research Centre for Geosciences published their research in Nature Geoscience. The continental ice sheets play a central role in climate. GFZ scientists Alexey Petrunin and Irina Rogozhina have created a model which calculates ice melt from geothermal forces.
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Saturday, August 3, 2013
Video - Massive Costs Associated with Arctic Methane
Global warming has been melting the permafrost for decades and this is releasing methane, a potent greenhouse gas. The implications for the economy are staggering as associated costs are expected to be in excess of 60 trillion. To put this number in perspective the global economy was valued at 70 trillion in 2012.
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Video - Unlocking Methane in the Permafrost is a Global Warming Time Bomb
Methane has been locked in the permafrost of the far north for thousands of years, but it is being released because of the thaw associated with global warming. The permafrost has been thawing rapidly over the last three decades and if this trend continues the consequences could be catastrophic. Referred to as a methane pulse, vast amounts of this destructive GHG could be released into the atmosphere. This will profoundly exacerbate global warming and may push us pass irreversible tipping points.
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Thursday, August 1, 2013
The Race to Exploit the Arctic's Resources Ignores the Costs
Rather than just look myopically at the economic benefits of melting Arctic ice we need to calculate the economic impacts. As explained in a recent report, the disastrous economic impacts of a warming Arctic are not being adequately investigated. Neither the World Economic Forum (WEF) in its Global Risk Report nor the International Monetary Fund (IMF) in its World Economic Outlook recognizes the potential economic threat from changes in the Arctic.
Melting Arctic ice is exposing vast mineral deposits as well as 30 percent of the worlds as yet untapped gas and 13 percent of untapped oil. We can also expect an ice free Arctic to give way to a number of new shipping routes. Lloyd’s of London has estimated that in the next decade we could see $100 billion investment the Arctic.
Melting Arctic ice is exposing vast mineral deposits as well as 30 percent of the worlds as yet untapped gas and 13 percent of untapped oil. We can also expect an ice free Arctic to give way to a number of new shipping routes. Lloyd’s of London has estimated that in the next decade we could see $100 billion investment the Arctic.
Wednesday, July 31, 2013
White Paper - Oil Spills in Arctic Waters
This White Paper is a compilation of research on oil spills in ice-covered Arctic waters and it offers suggestions for future study. It is subtitled, "An Introduction and Inventory of Research Activities and USARC Recommendations." The authors identify research entities in governmental, nongovernmental,
industrial, and private organizations, and provide
an inventory of research projects.
Given that much work is currently in progress, they provide only a snapshot in time, and an introduction to the topic. While an in-depth evaluation of the research results, a prioritization of research and development gaps, and a critical examination of the connection between research and oil spill response capability are undoubtedly important topics, they are beyond the scope of this effort.
Given that much work is currently in progress, they provide only a snapshot in time, and an introduction to the topic. While an in-depth evaluation of the research results, a prioritization of research and development gaps, and a critical examination of the connection between research and oil spill response capability are undoubtedly important topics, they are beyond the scope of this effort.
Tuesday, July 30, 2013
More Evidence that Arctic Warming is an Economic and Ecological Time Bomb
Although our understanding of the Arctic is far from complete, there is a growing body of evidence that suggests melting Arctic ice will free massive deposits of methane locked in the permafrost of the far north. This represents an unprecedented danger both economically and ecologically. The latest evidence for this ticking time bomb was presented in a report by Gail Whiteman, Chris Hope & Peter Wadhams presented in the journal Nature.
Melting Arctic ice is expected to have far reaching impacts well beyond the far north. One of the most grievous threats comes from the release of methane trapped in the permafrost beneath the East Siberian Sea. The authors estimate that the cost of a massive methane release off the northern coast of Russia alone is $60 trillion. This is a startling figure when we consider that the value of the global economy in 2012 was estimated to be $70 trillion.
Melting Arctic ice is expected to have far reaching impacts well beyond the far north. One of the most grievous threats comes from the release of methane trapped in the permafrost beneath the East Siberian Sea. The authors estimate that the cost of a massive methane release off the northern coast of Russia alone is $60 trillion. This is a startling figure when we consider that the value of the global economy in 2012 was estimated to be $70 trillion.
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Monday, July 1, 2013
Happy Canada Day?: Melting Arctic Ice and Flooding
As we look back on the year that was this Canada Day, we are faced with two historic environmental disasters: Melting Arctic ice and floods in Alberta. It appears likely that the largest Arctic ice melt in recorded history may be changing weather patterns including the worst floods in Alberta's history.
In June, flooding killed four people and forced more than 100,000 out of their homes in Southern Alberta. Over the period of 24 hours 100mm of rain fell in many areas of Alberta, with some locations in the foothills seeing almost 200mm. The heavy rains, combined with the melting snow pack in the mountains caused widespread flooding along the Bow and Elbow rivers. The Bow and Elbow rivers saw flows that were five to ten times the normal rate.
Very slow moving weather systems significantly increased the amount of rain which fell on Southern Alberta which may have been a result of changes in the jet stream attributable to Arctic ice melt. According to a study by Rutgers University, the jet stream has slowed down by about 14 percent since the 1990s.
In June, flooding killed four people and forced more than 100,000 out of their homes in Southern Alberta. Over the period of 24 hours 100mm of rain fell in many areas of Alberta, with some locations in the foothills seeing almost 200mm. The heavy rains, combined with the melting snow pack in the mountains caused widespread flooding along the Bow and Elbow rivers. The Bow and Elbow rivers saw flows that were five to ten times the normal rate.
Very slow moving weather systems significantly increased the amount of rain which fell on Southern Alberta which may have been a result of changes in the jet stream attributable to Arctic ice melt. According to a study by Rutgers University, the jet stream has slowed down by about 14 percent since the 1990s.
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Saturday, June 29, 2013
Video - O' Canada Stand Up for the Arctic and Oppose Climate Change
This 2011 video from the Canadian Foundation for Climate and Atmospheric Sciences (CFCAS) makes the point that Canada is truly an Arctic nation. The Arctic makes up over 40 percent of our landmass, and includes nearly three quarters of Canada's coastline. It's an essential part of our national identity and our climate. Sadly since this video was made climate change has continued to significantly undermine the Arctic. In 2012 we saw levels of Arctic ice melt that are unprecedented in recorded history.
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Saturday, April 20, 2013
Video - Beautiful Arctic: A Look at the Awe Inspiring Beauty We Stand to Lose
While the warming of the Arctic has very destructive global repercussions, there is also an unspeakably catastrophic loss of what can only be described as awe inspiring beauty. What kind of civilization would we be if we allowed our avarice to lay waste to such natural splendor?
Related Articles
More Evidence of Historic Arctic Warming: Lake Sediment and Ice Cores
Why the Fate of the Arctic Should be of Concern to Us All
Its Official Arctic Sea Ice is at its Lowest Level in Recorded History
The Arctic's Dangerous Combination of Environmental Toxicity and Genetic Vulnerability
The Dramatic Implications of Melting Arctic Sea Ice
Melting Arctic Ice is Releasing Massive Amounts of Methane
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Video - Arctic Warming: Risks for Methane Emissions
Dr. Ronald Prinn, TEPCO Professor of Atmospheric Science at MIT shares the result of his project measuring the rates of change in atmospheric concentrations of trace greenhouse gases. After more than 30 years of research, he and his colleagues recently noted an unexplained increase in methane concentrations. He outlines the risks posed by this finding in his discussion of "Arctic Warming: Risks for Methane Emissions, Sea Ice Loss, and Ocean Overturn." This talk is part of Cambridge Forum's After Copenhagen: Global Climate Change Conference.
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Video - Warming Arctic, Changing Planet
On November 12, 2012 The Lamont-Doherty Earth Observatory, Earth Institute, Columbia University and Quebec Government Office presented an exciting discussion about the effects of climate change on the Arctic. Experts highlighted how Arctic sea ice, climate, marine mammals, tundra, and indigenous communities have been affected by and are adapting to climate change. In addition, each expert addressed how these effects of climate change go far beyond the polar bears and may even impact you.
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Video - I Love Arctic (Greenpeace)
Climate change impacts the Arctic more than almost anywhere on earth and to make matters worse the life forms that live there may be more susceptible to the toxic environment created by global warming (for more information click here). Join the call for a global sanctuary in the uninhabited area around the North Pole.
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