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Post Info TOPIC: Greenhouse Gases
Blobrana


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RE: Greenhouse Gases
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A balanced summary on climate change available Feb 6
An independent summary of the latest United Nations report on climate change will be released Monday, February 5 in London, England by The Fraser Institute, a well-known Canadian think tank.
The Independent Summary for Policymakers (ISPM) is a detailed and balanced overview of the 2007 UN Intergovernmental Panel on Climate Change (IPCC) report that was released February 2 in Paris, and widely reported in New Zealand news media Saturday 3 February.
The New Zealand Climate Science Coalition has been authorised to release the ISPM, embargoed for publication until 11 p.m. Monday February 5, timed to coincide with its release in London.
To allow time for adequate study, we will email to media at 10 a.m. Monday, the ISPM, a covering media release from the Fraser Institute, plus a further covering release from the Coalition which will contain the names of New Zealand scientists who may be contacted for interviews or comments.

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Blobrana


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"There can be no question that the increases in these greenhouse gases are dominated by human activity...Warming of the climate system is now unequivocal. That is evident in observations of air and ocean temperature as well as rising global mean sea level" -  Susan Solomon, co-chair of the working group and an atmospheric scientist with the U.S. National Oceanic and Atmospheric Administration (NOAA).

Source

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Blobrana


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The Working Group I contribution to the IPCC Fourth Assessment Report describes progress in understanding of the human and natural drivers of climate change, observed climate change, climate processes and attribution, and estimates of projected future climate change. It builds upon past IPCC assessments and incorporates new findings from the past six years of research. Scientific progress since the TAR is based upon large amounts of new and more comprehensive data, more sophisticated analyses of data, improvements in understanding of processes and their simulation in models, and more extensive exploration of uncertainty ranges.

Changes in the atmospheric abundance of greenhouse gases and aerosols, in solar radiation and in land surface properties alter the energy balance of the climate system. These changes are expressed in terms of radiative forcing, which is used to compare how a range of human and natural factors drive warming or cooling influences on global climate. Since the Third Assessment Report (TAR), new observations and related modelling of greenhouse gases, solar activity, land surface properties and some aspects of aerosols have led to improvements in the quantitative estimates of radiative forcing.

Climate report (2.2mb, PDF)

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Blobrana


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Climate Change
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An influential global panel of scientists declared today that global warming is "unequivocal", that its effects are likely to last for centuries, and that mankind is almost certainly to blame.
The Intergovernmental Panel on Climate Change - which draws together 2,500 scientists from more than 130 countries - issued its strongest warning on the consequences of warming as it published what is considered the most authoritative research yet on the issue.
While the IPCC’s previous assessment in 2001 rated the link between the warming planet and human behaviour as "likely", which is said to mean a probability rate of 66-90 per cent, this has now been revised to "very likely" - a greater than 90 per cent chance that mankind is to blame.

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Blobrana


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IPCC
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The U.N. climate panel issued its strongest warning yet on Friday that human activities are heating the planet, putting extra pressure on governments to do more to combat accelerating global warming.
The Intergovernmental Panel on Climate Change (IPCC), the most authoritative group on warming which groups 2,500 scientists from more than 130 nations, predicted more severe rains, melting glaciers, droughts and heatwaves and a slow rise in sea levels.
The final text of the report said it was "very likely" -- meaning a probability of more than 90 percent -- that human activities led by burning fossil fuels explained most of the warming in the past 50 years.
That is a shift from the last report, in 2001, when the IPCC said the link was "likely", or at least 66 percent probable.

Source Reuters

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Blobrana


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Mountain glaciers are shrinking three times faster than they were in the 1980s, scientists have announced.
The World Glacier Monitoring Service, which continuously studies a sample of 30 glaciers around the world, says the acceleration is down to climate change.
Its announcement came as climate scientists convened in Paris to decide the final wording of a major report.
There is reported to be some disagreement over what forecasts they will make for sea level rise.

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Blobrana


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The first phase of the Intergovernmental Panel on Climate Change (IPCC)  is to be released in Paris next week.

The Intergovernmental Panel on Climate Change wa established by WMO and UNEP to assess scientific, technical and socio- economic information relevant for the understanding of climate change, its potential impacts and options for adaptation and mitigation. It is currently finalizing its Fourth Assessment Report "Climate Change 2007". The reports by the three Working Groups provide a comprehensive and up-to-date assessment of the current state of knowledge on climate change. The Synthesis Report integrates the information around six topic areas.

A 12-page summary is to be released to the public on Feb. 2.

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http://www.ipcc.ch/18ipcc.swf

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Blobrana


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Climateprediction.net
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A computer model of climate run on home PCs in conjunction with the BBC has yielded its first results.
About 250,000 people downloaded software from climateprediction.net onto their home computers, each running a single simulation of the future.
The results suggest the UK could be about 3C warmer than now in 75 years' time, agreeing with other models.
Full details will be revealed at the weekend in a BBC TV programme presented by Sir David Attenborough.

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Blobrana


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Climate change
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Earth's climate cannot be replicated in a lab. So to understand how this critical component of the planet's heat regulation works, scientists must rely on "natural experiments." Such natural experiments take apocalyptic form, such as the eruption of Mount Pinatubo in the Philippines in June 1991 that sent 10 cubic kilometres of ash, gas and other materials sky high. By tracking how this eruption affected the global climate--and determining how to trace its footprint in other records--scientists have turned the catastrophe into a tool for comprehension.

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Blobrana


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Regardless of what that U.S. congressman from Oklahoma says, global warning is real.
I don't need to see Al Gore's docu-movie to know that. A simple look at climatological data shows the Earth is getting hotter, inch by inch.
Last week, scientists were all stirred up after an ancient ice shelf in Canada broke off into the Atlantic because conditions had warmed up. This was a piece of a glacier that had formed from snow, it wasn't sea ice that comes from frozen sea water.

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"Yeah, as long as the Arctic stays cold." - Steve McQueen

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