[exDemMom]

Gee, how about consulting with some plant biologists before proposing dangerous schemes like this?

Plants need light and carbon dioxide. Decrease either one, and plants will suffer. Ironically, decreasing the light will cause carbon dioxide levels to increase, because plants will be less active and pull less CO2 out of the air to grow.

With all of this fear-mongering over a trace gas in the atmosphere, I wonder if any of these bozos have ever studied biology? Photosynthesis? The carbon cycle?

Are they aware that life evolved under conditions with more CO2 and O2 than now? Are they aware that the concentration of CO2 has decreased from a percent concentration to parts per million concentration over the geologic history of the earth? Natural processes remove CO2 and make it permanently unavailable to biological organisms. Those famed White Cliffs of Dover are composed of calcium carbonate, formed from CO2 that used to be in the air. Animals were larger back in the dinosaur and pre-dinosaur eras—could it be because of abundant CO2 and O2 which supported their growth?

I wish someone with some sense would speak out.

Unfortunately, even though the mechanism proposed for CO2 to heat the air cannot work, there is a strong political pressure to promote this idea and the draconian “solutions” that go with it. Socialists have always wanted to force people to live more primitive lifestyles. We wouldn’t do it when they just tried to force socialism on us for the sake of socialism. But when they say it’s for the environment, all of a sudden, people are fine with having their rights and quality of life taken away.

Ironically, I have yet to see a scheme that will actually change the average temperature of the earth without causing great harm. Blocking the sunlight will inhibit plant growth, in turn inhibiting the use of CO2 by living organisms. Removing CO2 from the air will cause plants to grow less and those that need higher CO2 concentrations will die off. And when the plants die because of lack of CO2, there is less food for everything else that depends on plants, so animal populations will also decrease. And the overall effect on temperature will be to drive it up, since without plants, more ground is bare and converts sun energy to heat.

[Reily]

The people who propose nutty stuff like this must really really want to trigger a transcontinental glaciation event.

[telescope115]

I couldn’t agree more! That aside, let’s look at the mechanics of such a concept: the Earth revolves around the sun, therefore it seems to me that the giant parasol would have to move as well to keep it in position. Have they even tried to work out the logistics of THAT? I don’t think so.

A worthless remedy for a nonexistent problem.

[MikelTackNailer]

Great synopsis at Post #46, Dr. ExDemMom - you should attend the next Davos meet of the Legion Of Doom and lay it on them.

This article requires hipwaders AND a shovel:

"Earth at its hottest point in recorded history...humans doing far from enough to stop its overheating...create a huge sunshade...to block a small but crucial amount of solar radiation, enough to counter global warming...and keep Earth within manageable climate boundaries. As the climate crisis worsens...a sunshade would not eliminate the need to stop burning coal, oil and gas, the main drivers of climate change. Even if greenhouse gas emissions from fossil fuels were to immediately drop to zero, there’s already excessive heat-trapping carbon dioxide in the atmosphere."

And you, countering their "settled science", replied:

Plants need light and carbon dioxide. Decrease either one, and plants will suffer. Ironically, decreasing the light will cause carbon dioxide levels to increase, because plants will be less active and pull less CO2 out of the air to grow.

Seriously though, the sheer arrogance of these people presuming 1.Humanity's actions are a blight that's destroying the ecosystem, 2.Their elite combined intelligence can save us from those actions at the low, low cost of our Freedoms, and 3.They assume the role of God before the Great Unwashed while denying His existance.

But given enough time, money and power these asshats could lead Earth to the destruction they purport to save us from.