Ocean and air currents merely redistribute heat. Neither can create it. I can think of only two major natural sources of heat on our planet. One is direct energy from the sun and the other is geothermal. Heat from burning fossil fuels is just that which came from the sun and was stored. The same goes for the burning of plant material....wood, etc. If we burn it faster than it's being produced, the earth may warm some because the energy is no longer being stored in the same proportion. What doesn't fit into natural sources is nuclear energy. While I believe it will be a necessary replacement for carbon fuels in the future, I cannot figure what will be it's warming affect on the earth as it becomes more the energy of choice for electrical power.
THE United States' leading hurricane forecaster says global ocean currents, not human-produced carbon dioxide, are responsible for global warming.
William Gray, a Colorado State University researcher, also said the Earth may begin to cool on its own in five to 10 years.
Speaking to a group of Republican MPs, Dr Gray had harsh words for researchers and politicians who said man-made greenhouse gases were responsible for global warming.
"They are blaming it all on humans, which is crazy," he said.
"We're not the cause of it."
Dr Gray said in the past 40 years the number of serious hurricanes making landfall on the US Atlantic coast had declined even though carbon dioxide levels had risen.
He said increasing levels of carbon dioxide would not produce more, or stronger, hurricanes.
Dr Gray, 77, has long criticised the theory that heat-trapping gases generated by human activity are causing the world to warm.
http://www.news.com.au/dailytelegraph/story/0,22049,21636036-5012769,00.html
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