Contents contributed and discussions participated by Simon Harrison - World at Risk - Year 12 Edexcel Geography

Study suggests rising CO2 in the past caused global warming - 0 views

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Global warming

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A scientific conundrum that has puzzled climate experts for years may have been solved with the publication of research showing how an increase in carbon dioxide levels in the atmosphere contributed to rising temperatures millions of years ago.

<div class="cArrow"> </div><div class="cContentInner">A scientific conundrum that has puzzled climate experts for years may have been solved with the publication of research showing how an increase in carbon dioxide levels in the atmosphere contributed to rising temperatures millions of years ago.</div>

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Agency plea over climate warning - 0 views

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Climate change

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Leading energy ministers have been told the world is on track for a long-term temperature increase of 6C unless they change their priorities. The International Energy Agency (IEA) said on current trends, emissions would double from 2009 to 2050. The deputy director of the IEA, Richard Jones, urged ministers: "Please take our warning seriously."

<div class="cArrow"> </div><div class="cContentInner">Leading energy ministers have been told the world is on track for a long-term temperature increase of 6C unless they change their priorities. The International Energy Agency (IEA) said on current trends, emissions would double from 2009 to 2050. The deputy director of the IEA, Richard Jones, urged ministers: "Please take our warning seriously."</div>

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Ocean driving Antarctic ice loss - 1 views

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Antarctic

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Ice satellite is 'powerful tool' - 0 views

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Arctic

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Europe's Cryosat mission is now watching the ebb and flow of Arctic sea ice with high precision. The radar spacecraft was launched in 2010 to monitor changes in the thickness and shape of polar ice. Scientists have spent the past two years getting to grips with its data.

<div class="cArrow"> </div><div class="cContentInner">Europe's Cryosat mission is now watching the ebb and flow of Arctic sea ice with high precision. The radar spacecraft was launched in 2010 to monitor changes in the thickness and shape of polar ice. Scientists have spent the past two years getting to grips with its data.</div>

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Severe Floods Affect 100,000 in Kenya - 1 views

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Flood

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Kenya plagued by extreme rain events, storms and rising temperatures Dozens of people have lost their lives, and at least 100,000 others have been affected by torrential rains, which have triggered widespread flooding, strong winds and rising temperatures across Kenya. Floods have destroyed homes and infrastructure, washed away crops and drowned livestock.

<div class="cArrow"> </div><div class="cContentInner">Kenya plagued by extreme rain events, storms and rising temperatures Dozens of people have lost their lives, and at least 100,000 others have been affected by torrential rains, which have triggered widespread flooding, strong winds and rising temperatures across Kenya. Floods have destroyed homes and infrastructure, washed away crops and drowned livestock.</div>

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Dozens killed or missing in Nepal avalanche-triggered floods - 0 views

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Flood

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Floods ravage tourist resort town of Pokhara, Nepal, sweeping away dozens of people Large masses of snow and ice slid down the Annapurna Mountain range blocking the Seti River in Kaski district, triggering extensive flooding south of mountain, and leaving scores of people dead or missing.

<div class="cArrow"> </div><div class="cContentInner">Floods ravage tourist resort town of Pokhara, Nepal, sweeping away dozens of people Large masses of snow and ice slid down the Annapurna Mountain range blocking the Seti River in Kaski district, triggering extensive flooding south of mountain, and leaving scores of people dead or missing.</div>

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La Niña comes to a close : Image of the Day - 0 views

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La nina

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After cooling the eastern tropical Pacific for the second winter in a row-and teaming with other large-scale weather patterns to wreak havoc on North American winter-La Niña ended in April 2012. Researchers from the Climate Prediction Center of the U.S.

<div class="cArrow"> </div><div class="cContentInner">After cooling the eastern tropical Pacific for the second winter in a row-and teaming with other large-scale weather patterns to wreak havoc on North American winter-La Niña ended in April 2012. Researchers from the Climate Prediction Center of the U.S.</div>

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'We have seen the enemy': Bangladesh's war against climate change - 0 views

www.guardian.co.uk/...esh-war-against-climate-change

Climate change Bangladesh

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Devastating cyclones, floods, erosion and ruined crops have made Bangladeshis 'the most aware society on climate change in the world'

<div class="cArrow"> </div><div class="cContentInner">Devastating cyclones, floods, erosion and ruined crops have made Bangladeshis 'the most aware society on climate change in the world'</div>

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Drought Hits Spain's Wheat Crop : Image of the Day - 0 views

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Drought

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Grain crops in Spain are suffering after an unusually dry autumn and winter. The amount of rainfall has been just half of normal in key grain producing regions. The top image shows the impact of the drought on plants throughout the country.

<div class="cArrow"> </div><div class="cContentInner">Grain crops in Spain are suffering after an unusually dry autumn and winter. The amount of rainfall has been just half of normal in key grain producing regions. The top image shows the impact of the drought on plants throughout the country.</div>

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Approaching Asteroid May Get Close Enough to Smash Satellites - 1 views

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asteroid Climate change

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Richard A. Lovett A newly discovered asteroid called 2012 DA14 will pass so close to Earth in February that it might hit a communications satellite, scientists say. "That's very unlikely, but we can't rule it out," said Paul Chodas, a planetary astronomer at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California.

<div class="cArrow"> </div><div class="cContentInner">Richard A. Lovett A newly discovered asteroid called 2012 DA14 will pass so close to Earth in February that it might hit a communications satellite, scientists say. "That's very unlikely, but we can't rule it out," said Paul Chodas, a planetary astronomer at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California.</div>

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Simon Harrison on 11 Jun 12

Richard A. Lovett A newly discovered asteroid called 2012 DA14 will pass so close to Earth in February that it might hit a communications satellite, scientists say. "That's very unlikely, but we can't rule it out," said Paul Chodas, a planetary astronomer at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California.

<div class="cArrow"> </div><div class="cContentInner">Richard A. Lovett A newly discovered asteroid called 2012 DA14 will pass so close to Earth in February that it might hit a communications satellite, scientists say. "That's very unlikely, but we can't rule it out," said Paul Chodas, a planetary astronomer at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California.</div>

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Don't dismiss geoengineering - we may need it one day - 0 views

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Geoengineering

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Opponents of geoengineering will no doubt seize upon this week's cancellation of the fieldwork element of the Spice project as a significant victory in their campaign to outlaw research in this area. There are important lessons to draw from the problems encountered by the project, which planned to investigate the feasibility of spraying particles into the stratosphere to mitigate global warming.

<div class="cArrow"> </div><div class="cContentInner">Opponents of geoengineering will no doubt seize upon this week's cancellation of the fieldwork element of the Spice project as a significant victory in their campaign to outlaw research in this area. There are important lessons to draw from the problems encountered by the project, which planned to investigate the feasibility of spraying particles into the stratosphere to mitigate global warming.</div>

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Australasia has hottest 60 years in a millennium, scientists find - 0 views

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Climate change anthropogenic

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The last 60 years have been the hottest in Australasia for a millennium and cannot be explained by natural causes, according to a new report by scientists that supports the case for a reduction in manmade carbon emissions.In the first major study of its kind in the region, scientists at

<div class="cArrow"> </div><div class="cContentInner">The last 60 years have been the hottest in Australasia for a millennium and cannot be explained by natural causes, according to a new report by scientists that supports the case for a reduction in manmade carbon emissions.In the first major study of its kind in the region, scientists at</div>

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A look at 'wind turbines' of the deep - 0 views

www.bbc.co.uk/...science-environment-18095482

Wind

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The latest device to harness the power of the tides is being tested in the stormy waters off Orkney in the far north of Scotland.

<div class="cArrow"> </div><div class="cContentInner">The latest device to harness the power of the tides is being tested in the stormy waters off Orkney in the far north of Scotland.</div>

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Geoengineering experiment cancelled due to perceived conflict of interest - 0 views

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Geoengineering

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A controversial geoengineering experiment to simulate the cooling effect of volcanoes has been cancelled due to concern over a perceived conflict of interest with some of the researchers. The experiment would have injected 150 litres of water into the atmosphere from a weather balloon via a 1km pipe tethered to a ship as part of the Spice project (Stratospheric Particle Injection for Climate Engineering).

<div class="cArrow"> </div><div class="cContentInner">A controversial geoengineering experiment to simulate the cooling effect of volcanoes has been cancelled due to concern over a perceived conflict of interest with some of the researchers. The experiment would have injected 150 litres of water into the atmosphere from a weather balloon via a 1km pipe tethered to a ship as part of the Spice project (Stratospheric Particle Injection for Climate Engineering).</div>

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Release of Arctic methane could accelerate warming - environment - 21 May 2012 - New Sc... - 1 views

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Arctic methane

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Melting Arctic permafrost could put even more methane - a potent greenhouse gas - into the atmosphere than previously thought, with worrying implications for the pace of global warming. Many ice sheets that sit like caps over rock crevices trap natural seeps of methane; when they melt, the gas can quickly be released into the atmosphere in "burps".

<div class="cArrow"> </div><div class="cContentInner">Melting Arctic permafrost could put even more methane - a potent greenhouse gas - into the atmosphere than previously thought, with worrying implications for the pace of global warming. Many ice sheets that sit like caps over rock crevices trap natural seeps of methane; when they melt, the gas can quickly be released into the atmosphere in "burps".</div>

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Protect Antarctic waters before it's too late, says environment coalition - 0 views

www.guardian.co.uk/...protect-antarctic-waters

Antarctica

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The Antarctic Ocean Alliance is urging the UK government to protect one of the last true frontier areas before it is damaged irreparably by human interference

<div class="cArrow"> </div><div class="cContentInner">The Antarctic Ocean Alliance is urging the UK government to protect one of the last true frontier areas before it is damaged irreparably by human interference</div>

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The threat posed by climate change in Bangladesh - in pictures - 0 views

www.guardian.co.uk/...sted-climate-change-bangladesh

Climate change bangladesh

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Christian Aid highlights the plight of the millions of Bangladeshis forced to live along constantly changing river systems on World Environment Day

<div class="cArrow"> </div><div class="cContentInner">Christian Aid highlights the plight of the millions of Bangladeshis forced to live along constantly changing river systems on World Environment Day</div>

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Vast cosmic event leaves record in ancient trees - space - 03 June 2012 - New Scientist - 0 views

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Dendrochronology

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The wooden hearts of two cedar trees hold a 1200-year-old cosmic mystery - evidence of an unexplained event that rocked our planet in the 8th century. Cosmic rays are subatomic particles that tear through space. When they reach Earth they react with the oxygen and nitrogen in the atmosphere, producing new particles.

<div class="cArrow"> </div><div class="cContentInner">The wooden hearts of two cedar trees hold a 1200-year-old cosmic mystery - evidence of an unexplained event that rocked our planet in the 8th century. Cosmic rays are subatomic particles that tear through space. When they reach Earth they react with the oxygen and nitrogen in the atmosphere, producing new particles.</div>

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Geoengineering would turn blue skies whiter - environment - 01 June 2012 - New Scientist - 0 views

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Geoengineering

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Blue skies would fade to hazy white if geoengineers inject light-scattering aerosols into the upper atmosphere to offset global warming. Critics have already warned that this might happen, but now the effect has been quantified. Releasing sulphate aerosols high in the atmosphere should in theory reduce global temperatures by reflecting a small percentage of the incoming sunlight away from the Earth.

<div class="cArrow"> </div><div class="cContentInner">Blue skies would fade to hazy white if geoengineers inject light-scattering aerosols into the upper atmosphere to offset global warming. Critics have already warned that this might happen, but now the effect has been quantified. Releasing sulphate aerosols high in the atmosphere should in theory reduce global temperatures by reflecting a small percentage of the incoming sunlight away from the Earth.</div>

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Geothermal energy could meet a fifth of UK's power needs - report - 0 views

www.guardian.co.uk/...geothermal-energy-uk-power

Geothermal

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The study found that subsidising geothermal technology initially would help to bring down costs rapidly as UK sites were developed The UK could meet a fifth of its power needs - the equivalent of nine nuclear power stations - by exploiting geothermal power, a new report into the technology has found.

<div class="cArrow"> </div><div class="cContentInner">The study found that subsidising geothermal technology initially would help to bring down costs rapidly as UK sites were developed The UK could meet a fifth of its power needs - the equivalent of nine nuclear power stations - by exploiting geothermal power, a new report into the technology has found.</div>

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