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Climate Pt 2-Ice Cores,CFC Gases, the Greenhouse Effect and the Ozone Layer

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Uploaded by on Dec 16, 2009

BBC climate programme on climate change evidence, taking into consideration the arguments of NASA and environmental experts and sceptic opposition.
This section looks at ice cores from around the World which are used to measure environmental conditions from tens of thousands of years ago. Deep solid ice in regions such as the Antarctic contain temperature and environmental conditions from previous ice-ages and are used to create a record of Earth's climate conditions over the ages.
Part 2.

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  • Look ya dumb ass ...if the global temperature has gone up about 1 degree (which it has)...it is known that at the poles that is found to be bout 3 to 5 degrees (some studies show it even as high as 6.This melts ice . Sending more water vapor into the atmosphere.That water vapor comes down as snow and before doing so it of course blocks the suns radiation.This causes some areas to experience colder winters with possibly more snow.Man research it and stop listening to th likes of fox news & Rush.

  • @copycoonie - THICKNESS & physical area of ice at N. Pole has shrunk- LESS vapour evaporates. End of October here in U.K, and instead of usual cold winter weather, temperatures are going up this week- almost to 20c, way above average by 10 degrees...because warmer Southern winds from Africa through to Spain are pushing up through the U.K. Put simply, large warm weather pattern still pushing up North in winter months. U.K rarely gets snow- but used to in the last century up to the 1980's...

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  • good for students

  • The timing of this is all mixed up. CFCs were well understood by the beginning of the 1980s although there was some dispute about their actual effect. Reagan signed the Montreal Protocol in 1987.

    Also the idea of rapid climate change cuts both ways. In fact recently many climate scientists have argued that the climate has been quite stable for a long time.

  • @carlospfontes

    AGW's don't understand that if we get this wrong and go on with carbon tax/cap and trade. The food prices will go on rising and poor people will die. We don't want to pollute. CO2 is just not a pollutant. Youre CO2 case is built on computer modells. Every modell ever made have over shot the effect of CO2. See former IPCC reports. IF CO2 is heating the planet - Why am i freezing my ass of in the coldest winter for 70 years?

  • Sceptics can't understand that improve our energy technology and efficiency, stop deforestation, transfer resources and technology to the poor will actually reduce poverty instead. No matter if the most of the warming is caused exogenously by the sun or not, we have to do the most we can to mitigate it.

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