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Major Climate Change 5,200 Years Ago Could Repeat
An anonymous reader writes "The climate was altered suddenly some 5,200 years ago with severe impacts. Famouse glaciologist professor Lonnie Thompson have found clues that show history repeating itself. Thompson has spent his career trekking to the far corners of the world to find remote ice fields and then bring back cores drilled from their centers. Within those cores are the records of ancient climate from across the globe. He outlined his fears today at the annual meeting of the American Geophysical Union in San Francisco. 'The evidence clearly points back to this point in history and to some event that occurred. It also points to similar changes occurring in today's climate as well,' he said."
here...http://researchnews.osu.edu/archive/quelpla nt.htm
i do not think climate change is junk science.
that aside i would like to see a more balanced view in mainstream research. all to many simply view human society as the culprit and leave it at that. this paper says it happend 5200 years ago and now its happening again. well human outlet of green house gases were not responsible then, are they now? i reasonly watched a television program on the subject and the most interesting thing was that several of the researchers cliamed that when looking at temperature raise in atmosphere (as opposed to ground level) only a 1/3 of the projected raise was seen! they further claimed the reason for this discrepancy was the fact that many of the early temperature measuring stations was set up in or around citys dos measuring not global warming but local warming as a result of city expansion. now this is not to say the green house thing is wrong just that it may be more complex then "green house gases did it!!".
just my 2 cent (euro cent!)
"Men will never be free until the last king is strangled with the entrails of the last priest." - Denis Diderot.
Hey, fella, guess what? You're in luck!The consensus on human CO2 emissions causing climate change is about as solid as you can get - despite what the oil-lobby, uninformed trolls and assorted net.kooks would have you believe.
"None are more hopelessly enslaved than those who falsely believe they are free." -- Goethe
show me a solution to the problem and will back it
The problems are:
1) Convention. We have infrastructure in place to burn fossil fuels, and inertia being what it is, we continue along that course. Maintaining the status quo is bad for the environment. It also results in an unfavorable balance of trade for the US. I was amused by the public service announcements equating drug use with funding terrorists. The US is addicted to oil from the Middle East, and that addiction is the real source of funding for Middle Eastern terrorists.
2) Subsidies. There are pseudo-subsidies which make it difficult for alternative energy to compete with fossil fuels. These aren't direct government subsidies to the oil industry, although some amount of that wouldn't surprise me. Many of the costs of burning fossil fuels are not paid by the fuel infrastructure. Pollution is paid for in a number of other places, including everything from the EPA budget, to the increased cost of insurance and health care relating to environmentally related illnesses, to the increased maintenance costs we all pay for tasks such as repainting because smog damages almost everything it touches. And who pays for medical care of coal miners with black lung? How much of our taxes does the US government contribute to cleaning up oil spills? If fossil fuels paid for all the problems they cause our society, solar and wind power would be more than cost effective in a fair comparison.
3) Fuelish Government Policies. As one example, the US government offers a substantial tax break to businesses who buy trucks of a certain size. The idea was ostensibly to encourage small businesses to buy delivery trucks and farmers to buy farm related vehicles. But the policy was almost instantly exploited. It encouraged automakers to produce the land barge sized SUVs. Almost every auto maker has a model large enough to qualify, and they're sold to businesses that provide them as company cars. So the government is encouraging auto makers to build 12 mpg SUVs, by offering tax incentives for businesses to buy them.
GM created the EV1 electric car. They leased them to many customers, and the customers loved them. They were very low maintenance, requiring no oil changes and even reduced brake wear because they employed regenerative braking. Best of all, there was never a need to stop for gas. It charges automatically while parked in the garage at night when the off peak electric rates are low. It's easy to imagine solar charging for the EV1. But GM decided to focus 30+ years down the road on the hope of hydrogen cars. Despite angry protests from their customers, they pulled the EV1 off lease. Some of their customers wanted to absolve GM of all liability and support for the EV1 and purchase it outright, after essentially already buying it during the lease period. GM refused. It sure looks like an attempt to suppress technology.
So, here are the solutions to the problem. Start backing them.
We could have electric cars today that pollute much less than internal combustion engine cars, even when they're ultimately powered by coal powered plants as an interim solution. Solar power is available almost everywhere and even though Moore's Law does not apply to solar cells, a similar effect seems likely. Once we converted our energy system to mostly solar, huge economies of scale apply and the price drops enormously. Solar panels have proven to be low maintenance with long term reliability. If we get the initial cost down, the payback period will be shorter and this technology will appeal even to short sighted American businesses.
We need less expensive solar cells, more efficient energy storage devices, and a change in our infrastructure to support alternative energy solutions.
Finally, one obviously simple technique that would have the single largest impact in our energy policy would be to drastically reduce the amount of fossil fuels being burned for space heating and water heating.
>> My ultraviolent Linux switch video.
"None are more hopelessly enslaved than those who falsely believe they are free." -- Goethe