get ready for 6 degress of global warming

This has got to be the scaremongering "par excellence".

The more shrill & dire the threat is...the more I get turned off.

Why is what is written below not to be believed? It is predicated on CO2 increasing, and the related absorbed radiant heat exchange & feedback mechanism.....You have to go back to the basic building block of science to see this doomsday scenario belongs in a schlock horror movie.

The reality is this is not likely to happen for 3 key reasons:
1. the narrow absorption range bands of CO2;
2.CO2 natural logarithmic absorption of long wave radiation; and
3. a highly likely smaller feedback mechanism via latent heat exchange from long wave radiation than IPCC models predict, relying on MODTRANS empirical data, as opposed to IPCC assumptions.

A doubling of CO2 would most likely only result in a fraction of a degree increase in global temperature. Richard Lizden reckons about 0.6 of a degree as I recall. I will go with him rather than the quacks below.

It's a shame what is happening to science.



http://www.heraldsun.com.au/news/world-temperatures-to-rise-by-6c-by-end-of-the-century-scientists-say/comments-e6frf7jo-1225799613986

Catastrophic climate change 'inevitable', scientists warn

The Daily Telegraph

November 20, 2009 12:01am
* Temperatures likley to rise 6C in 90 years
* Would render parts of globe uninhabitable
* Earth's ability to absorb CO2 declining

THE world is spinning toward a catastrophic climate change scenario, with temperatures now far more likely to rise by 6C by the end of the century, a leading international team of scientists has warned.

An increase of 6C would have irreversible consequences, rendering large parts of the globe uninhabitable and destroying much of life on earth.

The study by Professor Corinne Le Quere, from the British Antarctic Survey and East Anglia University, is the most comprehensive so far of how economic changes and shifts in the way people used land over the past 50 years have affected CO2 concentration in the atmosphere.

It also claims the Earth's natural ability to absorb CO2 into soil, forests and oceans is declining.

The nightmarish possibility of a 6C temperature rise was made public by the UN Intergovernmental Panel on Climate Change in 2007, when it was then only a worst-case scenario.

But according to Professor Le Quere it is now all but inevitable.

"We're at the top of the IPCC scenario," she told Nature Geoscience, a respected science journal, which published the study yesterday.

Her research - backed by 31 top researchers from seven countries including Australians involved in the Global Carbon Project - found there had been a 29 per cent rise in global CO2 emissions from fossil fuels between 2000 and 2008.

The annual average CO2 increase of 3.4 per cent since 2000 compared with increases of only 1 per cent the previous eight years.

She said there was no doubt carbon dioxide emissions from transport and industry and deforestation were squarely to blame.

Governments around the world are trying to find agreement to limit the rise to 2C, the level believed required to avoid extremely dangerous climate change.

Professor Le Quere said next month's UN climate conference in Copenhagen had to come out with a clear and decisive global policy.

"If the agreement is weak or the commitments not respected, it is not 2.5C or 3C we will get, it's 5C or 6C, that is the path we're on," she said.

An Earth 6C hotter than today's temperatures would be a nightmarish place, according to most predictions.

All ice on both poles would have melted, pushing sea levels at least 6m higher. Temperate bushland and even rainforests would become deserts, while methane fireballs could erupt from oceans where marine life had died because of a lack of oxygen.

Australian pressure group The Climate Institute said on current emission trends, unmitigated climate change is likely to have catastrophic global impacts.

Minister for Climate Change and Water, Senator Penny Wong, yesterday said Australia must act now to reduce the country's carbon pollution and that a global deal at Copenhagen was difficult but vital.