Google Tech Talks
January, 7 2008
Emergency preparedness is generally considered to be a good thing, yet there is no plan regarding what we might do should we be faced with a climate emergency. S...
Google Tech Talks January, 7 2008
Emergency preparedness is generally considered to be a good thing, yet there is no plan regarding what we might do should we be faced with a climate emergency. Such an emergency could take the form of a rapid shift in precipitation patterns, a collapse of the great ice sheets, the imminent triggering of strong climate system feedbacks, or perhaps the loss of valuable ecosystems.
Over the past decade, we have used climate models to investigate the potential to reverse some of the effects of greenhouse gases in the atmosphere by deflecting some incoming sunlight back to space. This would probably be most cost-effectively achieved with the placement of small particles in or above the stratosphere. Our model simulations indicate that such geoengineering approaches could potentially bring our climate closer to the state is was in prior to the introduction of greenhouse gases.
This talk will present much of what is known about such geoengineering approaches, and raise a range of issues likely to stimulate lively discussion.
Speaker: Ken Caldeira Ken Caldeira is a scientist at the Carnegie Institution Department of Global Ecology and a Professor (by courtesy) at the Stanford University Department of Environmental and Earth System Sciences. Previously, he worked for 12 years in the Energy and Environment Directorate at the Lawrence Livermore National Laboratory (Department of Energy). His research interests include the numerical simulation of Earth's climate, carbon, and biogeochemistry; ocean acidification; climate emergency response systems; evaluating approaches to supplying environmentally-friendly energy services; ocean carbon sequestration; long-term evolution of climate and geochemical cycles; and marine biogeochemical cycles. Caldeira has a B.A. in Philosophy from Rutgers College and an M.S. and Ph.D. in Atmospheric Sciences from New York University.
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Give me historical examples where large-scale environmental engineering were long-term successes - are there any that did not turn into a catastrophe for the generation that followed? Please learn to be humble, or the arrogance and self-righteousness of scientists will ruin us - financially and physically. By the way: psychology shows that optimists ("it will work!") are not very susceptible to doubts. That's why they should do business, not politics. And not geo-engineering!
According to NOAA data, earth is now cooling. Good news for taxpayers who will be severely penalized if cap & trade is passed. Data compilation demonstrating ice recovery watch?v=q9KGT3ZfFjQ
Min 17:07 "High-altitude transport aircraft Condor/Global Hawk with a cargo bay B747 10+ tonnes/yr of ENGINEERED AEROSOL.
Acid rain & other PM in our immediate breathing atmosphere are bad enough w/out adding engineered aerosols
Climate models predicted a cooling STRATOSPHERE, satellites confirmed the prediction was correct, astroturfers claims this proves Earth is cooling?
Also the video you point to is dishonestly conflating shrinking Artic sea ice with expanding Antartic icebergs.
Nobody seems to want to take credit for producing the video you point to, I assume it was made by the lobbyists at the heartland institute or one of their front groups, Bob Carter perhaps?
Yeah and "super volcano's" will put out much more and prevent sunlight from entering causing global cooling for several years. Don't you find it useful that we know how to warm the planet now. These were simply theories thought of that could be done and more practical theories that can be done. I don't believe they were suppose to be long term.
well if a super volcano goes off we've had it. Likewise if we continue to bugger up the atmosphere then we've had it! Personally I would have rather do the science in a lab & on a computer, than go buggering up the Earth's environment; however "useful" it MIGHT be in the future to know this stuff. Seems totally mad daft & crazy to let loose runaway global BURNING just to find out what will happen... when an ecologists could have told you this 40 years ago (if only people would have listened)!
That's is exactly what I thought should be done if anything appropriate should be done at all. However it is not useful to criticize the lecture when it was based on theoretical situations that could be used in the event of an emergency to prolong humanities existence. We can build greenhouses for vegetation in the event that a super volcano goes off and it is possible that we can survive if we have a plan. All in all I agree doing this on a computer at this point makes more sense.
I think my only criticism of this sort of thing is that there are those out there who would use it as an excuse to continue to bugger up the environment.. and would say.. "its okay, we have ways of fixing things.. so now its okay if we mess it up"... as their justifying chant. The beauty of the Earth's system is that it will adapt & respond differently to different conditions.. this is why Lovelock said Gaia was like a living self-regulating system.
Even considering this is pure madness. There are too many variables. Get one thing wrong and all calculations go out the window. As examples he failed to mention that extra particles in the atmosphere would actually trap heat at night. Also aerosol particles are extremely small and interfere with rain bearing clouds making them less lightly to shed rain. Anyway, the bastards are doing it already as the now ubiquitous chemtrails and chemclouds attest. Humans are out of control!
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watch?v=q9KGT3ZfFjQ
Min 17:07
"High-altitude transport aircraft
Condor/Global Hawk with a cargo bay
B747 10+ tonnes/yr of ENGINEERED AEROSOL.
Acid rain & other PM in our immediate breathing atmosphere are bad enough w/out adding engineered aerosols
Climate models predicted a cooling STRATOSPHERE, satellites confirmed the prediction was correct, astroturfers claims this proves Earth is cooling?
Also the video you point to is dishonestly conflating shrinking Artic sea ice with expanding Antartic icebergs.
Nobody seems to want to take credit for producing the video you point to, I assume it was made by the lobbyists at the heartland institute or one of their front groups, Bob Carter perhaps?
Likewise if we continue to bugger up the atmosphere then we've had it!
Personally I would have rather do the science in a lab & on a computer, than go buggering up the Earth's environment; however "useful" it MIGHT be in the future to know this stuff.
Seems totally mad daft & crazy to let loose runaway global BURNING just to find out what will happen... when an ecologists could have told you this 40 years ago (if only people would have listened)!
I think my only criticism of this sort of thing is that there are those out there who would use it as an excuse to continue to bugger up the environment.. and would say.. "its okay, we have ways of fixing things.. so now its okay if we mess it up"... as their justifying chant.
The beauty of the Earth's system is that it will adapt & respond differently to different conditions.. this is why Lovelock said Gaia was like a living self-regulating system.