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Who says the Science is settled??
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Halfway to Copenhagen, no way to 2 °C

quote:
National targets give virtually no chance of constraining warming to 2 °C and no chance of protecting coral reefs.


quote:
To constrain global warming to within 2 °C, developed countries would need to cut their emissions to 25–40 per cent below 1990 levels by 2020 and to 50–80 per cent below 1990 levels by 2050, according to the best available scientific analyses.


From Nature.com


21 years off the grid and counting

 
Location: Muskoka, Ont, Can | Registered: March 23, 2003Reply With QuoteReport This Post
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quote:
Originally posted by john galt:

There is this big ball of energy in the sky. It is called the SUN. It
can be hotter some decades and cooler others. End of story. If you think
you are going to do anything about it your dreaming. Your nothing
compared to this power.


Climate myths: Global warming is down to the Sun, not humans

Climate myths: It's all down to cosmic rays

quote:
Direct measurements of solar output since 1978 show a steady rise and fall over the 11-year sunspot cycle, but no upwards or downward trend .

Similarly, there is no trend in direct measurements of the Sun's ultraviolet output and in cosmic rays. So for the period for which we have direct, reliable records, the Earth has warmed dramatically even though there has been no corresponding rise in any kind of solar activity





Solar forcing:

quote:
In summary, although solar forcing is real, the implications of that are often rather overstated. Since there has been a clear history of people fooling themselves about the importance of solar-climate links, any new studies in the field need to be considered very carefully before conclusions are drawn, especially with respect the warming over recent decades, which despite all of this discussion about solar activity, is almost all related to anthropogenic greenhouse gases.


21 years off the grid and counting

 
Location: Muskoka, Ont, Can | Registered: March 23, 2003Reply With QuoteReport This Post
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Researchers have largely put to rest a long debate on the underlying mechanism that has caused periodic ice ages on Earth for the past 2.5 million years – they are ultimately linked to slight shifts in solar radiation caused by predictable changes in Earth's rotation and axis.
http://www.sciencedaily.com/re.../08/090806141512.htm



 
Location: coldest N.America | Registered: May 03, 2005Reply With QuoteReport This Post
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I agree. This has been a theory for some time and explains why temperatures rose first for an average of 800 years first then the co2 feedbacks took us into a further warming for the next 4000 years. From the article

quote:
"Solar radiation was the trigger that started the ice melting, that's now pretty certain," said Peter Clark, a professor of geosciences at OSU. "There were also changes in atmospheric carbon dioxide levels and ocean circulation, but those happened later and amplified a process that had already begun."


The corralation between temperature and co2 has been shown to be both ways. Raise one of the two and the other will follow, this is known. Similarly decrease one and the same holds true.

While this explains the ancient ice ages it clearly doesn't explain what's happening now

quote:
Sometime around now, scientists say, the Earth should be changing from a long interglacial period that has lasted the past 10,000 years and shifting back towards conditions that will ultimately lead to another ice age – unless some other forces stop or slow it. But these are processes that literally move with glacial slowness, and due to greenhouse gas emissions the Earth has already warmed as much in about the past 200 years as it ordinarily might in several thousand years, Clark said.


21 years off the grid and counting

 
Location: Muskoka, Ont, Can | Registered: March 23, 2003Reply With QuoteReport This Post
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quote:
Originally posted by john galt:
Global Warming: Scientists' Best Predictions May Be Wrong



As I comented earlier on this story about a misleading headline it seems the denialist sector has jumped all over this story claiming that since the scientist's predictions are wrong then global warming is not happening. Nothing could be further from the truth.

With Marc Morano at it again declaring it the final nail in the AGW coffin and picked up by the denial echo chamber posting it all over the web as "proof" there's no warming trend going on it's nice to see a post by a real climatologist clarifying just what this report ment.

Entitled PETM Weirdness and writen by Gavin A. Schmidt this explains the confusion of how this report was misinterpeted by the media but more importantly explains the current knowlage of this period (PETM) and why it's important to understand it to extropolate what the future holds for global warming. It's a nice short but detailed explanation for anyone interested.

A new report on the methane release in the Arctic Ocean has been released today from Science Daily

Warming Of Arctic Current Over 30 Years Triggers Release Of Methane Gas

It looks like the scientists are starting to track down the amounts released to global atmospheric concentrations (although it's early yet) continuing the research on tipping points. A notable quote though

quote:
"Our survey was designed to work out how much methane might be released by future ocean warming; we did not expect to discover such strong evidence that this process has already started."


And the oil companies position,as it's always been

Oil lobby to fund campaign against Obama's climate change strategy


21 years off the grid and counting

 
Location: Muskoka, Ont, Can | Registered: March 23, 2003Reply With QuoteReport This Post
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And the oil companies position,as it's always been

Oil lobby to fund campaign against Obama's climate change strategy


That's a horribly jaded title. According to the article, the oil company is providing a forum for people with objections to be heard; that's called DEMOCRACY. Ignoring and suppressing the opposition is called a TYRANNY...and is much closer to the current techniques of the universal health care supporters and climate change supporters lately than open debate.

If the oil company was paying people to attend, actors even, to protest, it would be an appropriate title. That isn't what is happening.
 
Location: Southern WI, USA | Registered: May 18, 2006Reply With QuoteReport This Post



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ScienceDaily (Oct. 19, 2011) — Rivers and streams ...are releasing substantially more carbon dioxide into the atmosphere than previously thought, according to researchers publishing their results in the current issue of the journal Nature Geoscience.



 
Location: coldest N.America | Registered: May 03, 2005Reply With QuoteReport This Post
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