Posted on 11/10/2014 1:51:09 AM PST by Libloather
**SNIP**
Dr. Schuiling’s idea is one of several intended to reduce levels of CO2, the main greenhouse gas, so the atmosphere will trap less heat. Other approaches, potentially faster and more doable but riskier, would create the equivalent of a sunshade around the planet by scattering reflective droplets in the stratosphere or spraying seawater to create more clouds over the oceans. Less sunlight reaching the earth’s surface would mean less heat to be trapped, resulting in a quick lowering of temperatures.
No one can say for sure whether geoengineering of any kind would work. And many of the approaches are seen as highly impractical. Dr. Schuiling’s, for example, would take decades to have even a small impact, and the processes of mining, grinding and transporting the billions of tons of olivine needed would produce enormous carbon emissions of their own.
Beyond the practicalities, many people view the idea of geoengineering as abhorrent — a last-gasp, Frankenstein-like approach to climate change that would distract the world from the goal of eliminating the emissions that are causing the problem in the first place. The climate is a vastly complex system, so manipulating temperatures may also have consequences, like changes in rainfall, that could be catastrophic or benefit one region at the expense of another.
(Excerpt) Read more at msn.com ...
Removing all leftists has the very same result.
I stopped reading when it said CO2 is the main greenhouse gas. That would be water vapor, by a large factor.
Doofusses!
The Law of Unintended Consequences rules when these idiots try to fool Mother Nature.
True, but H2O is a given. While its concentration is constantly changing in the air at a given point, that concentration is driven largely by temperature, not human activity.
In contrast, people really have significantly increased the concentration of CO2. We can argue about what that means, but not that it has happened.
World Temps unchanged for 18 years. Nothing to fix there Che.
In general terms, cold is BAD. Warm is GOOD. Just ask the folks who froze and starved in the little ice age.
So called ‘climate change’...nothing but the new Marxist religion and terror plot
OK!! Everybody pay attention!
Lesson for today:
1. The sun is 1,300,000 times as big as the earth.
2. The sun is a ball of fire that controls the climates of all its planets.
3. The earth is one of the sun’s planets.
4. The earth is a speck in comparison to the size of the sun.
5. Inhabitants of the earth are less than specks.
Study Question: How do less-than-specks in congress plan to control the sun?
These fools are going to act in secret to save the earth from global warming. In their nobel self righteous endouver they will cause a run away greenhouse or a new ice age.
Liberals should be like the whales and blow sea water out their own blow holes.
“In contrast, people really have significantly increased the concentration of CO2. We can argue about what that means, but not that it has happened.”
I agree. CO2 has gone from about 280 PPM to right around 400 PPM right now, and will likely hit 600 PPM at least before it begins a slow decline. Regardless of warming, it is affecting the acidity of the oceans.
This proposal is low-risk, cheap, and makes sense. It can’t possibly harm anything, unlike depriving folks of energy.
I advocate replacing coal electric production with nuclear as well. Not because of CO2, but because coal is a dirty fuel that pollutes the air badly and is the main source of mercury in the ocean. Current and next-gen nuclear are extremely safe and the cleanest form of reliable energy production we have.
The question is what CO2 level is normal? The earth has had periods of much higher CO2 levels and gone through temperature cycles independent of any human activity, or CO2 level.
Don’t know if recent changes are significant or abnormal in the long term history of the world. Nobody knowa, and we can’t change the numbers anyway.
Doesn’t CO2 follow temperature change not cause it?
(The government way... If it ain’t broke, fix it til it is.)
Honest, non-leftist scientists will tell you...water vapor is the most prevalent and controlling greenhouse gas.
Sorry, I can not agree “people really have significantly increased the concentration of CO2”! The change in rate of increase of CO2 compared to change in temperature may be more telling.
Roger that! See my #15.
“Sorry, I can not agree “people really have significantly increased the concentration of CO2”! The change in rate of increase of CO2 compared to change in temperature may be more telling.”
Not even skeptical scientists like Lindzen, Curry or Spencer dispute that humans have introduced the vast majority of “extra” CO2 in the atmosphere over the last couple of centuries. How much fossil fuel is burned worldwide is well known, and it’s a simple calculation as to how much it’s increased CO2 content. It is somewhat exacerbated due to deforestation and urbanization.
Skepticism is fine, but at least make it well-informed skepticism. :-)
The climate change lunatics, the ones that know math, realize that CO2 alone cannot significantly raise the temperature to threatening levels. They state that a water vapor feedback amplifies the increase CO2 effect. So water vapor is not a given. It is the primary mechanism for even the climate change lunatics.
You are correct. I was not trying to provide a detailed analysis of their theories.
The problem with their theories is simply what you say. Any complex system has multiple feedback loops, some positive, some negative.
The warmists generally assume that most if not all feedbacks will be positive, amplifying the effect. But the mere fact that life has existed for billions of years implies feedbacks in the system that prevent massive change.
What I’ve always found intriguing is that we are in an Ice Age now, the Quaternary, and the ice WILL return. We are far enough into the present interglacial that we may very well be approaching its end. Yet people are freaked out about runaway heat.
Used to. But then we haven’t had massive release of CO2 before due to “artificial” causes.
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