See? Someone was going to figure out a solution 1

[IRstuff]

Just block sunlight from reaching Earth

https://www.popularmechanics.com/space/a40486004/space-bubbles-climate-change/

TTFN (ta ta for now)
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[TugboatEng]

That will be good for the plants. We can start watering with Brawndo well we're at it. Plants need their electrolytes.

 

[Tomfh]

Problem solved. Nice one!

 

[rb1957]

better block the sun with orbiting power stations ... no sun and energy as well !

but these shades would need to be several times the diameter of the earth ... consider the shadow that the moon projects during an eclipse.

I think I prefer the equally ridiculous idea of adding particles to the atmosphere to induce clouds and cooling.
Then we would really be in the Anthropocene.

another day in paradise, or is paradise one day closer ?

 

[TugboatEng]

I won't take the climate change crowd seriously as long as they keep taking these idiot ideas seriously. The existentialism is clouding their judgement.

 

[IRstuff]

but these shades would need to be several times the diameter of the earth

Actually, no; they plan to put the balloons at the L1 point, so much smaller than even the Moon will be sufficient to dim the sunlight.

On the other hand, this will wreak havoc on helioscope systems, since they won't have a clean view of the sun with the balloons in the way

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[JoshPlumSE]

That will be good for the plants. We can start watering with Brawndo well we're at it. Plants need their electrolytes.

Well, it is what plants crave, right?

 

[rb1957]

wouldn't a moon sized object cast a smaller shadow if it was at L1 (further away) ?

the moon already blocks the sun (during an eclipse) but the shadow on the earth is quite small.

but this is such a silly concept that I'll quit now.

another day in paradise, or is paradise one day closer ?

 

[IRstuff]

The umbra is small, but the penumbra is considerably larger. They don't actually want a full shadow, just lots of penumbras, since they're only looking for a tiny amount of dimming. As mentioned in the article, a total area of the size of Brazil is sufficient.

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[dik]

...as long as there are no unintended consequences. I seem to recall that with cloud seeding a bit back.

So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

[Tomfh]

but these shades would need to be several times the diameter of the earth ... consider the shadow that the moon projects during an eclipse.

The moons shadow is blurry, but all the light falling on the moon is blocked regardless. The shadowing needn’t be 100% to reduce incoming radiation.

 

[Tomfh]

...as long as there are no unintended consequences.

We definitely need a backup plan to destroy the bubbles should they cause havoc. Im envisaging a ragtag team of good ole boys, sent to space to clear the bubbles using tactical nukes.

 

[TugboatEng]

We could use CO2 to fill the balloon.

 

[IRstuff]

The bubbles are relatively easy to deal with, since the platform they're mounted on would already need motors to maintain their position at the L1 point, so taking it away from that position is straight forward.

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[TugboatEng]

I question the choice of material to withstand solar radiation while still being inexpensive. Also, wouldn't it get very hot? It's expected to deal with a planet's amount of heat with a tiny fraction of its mass.

 

[IRstuff]

I question the choice of material to withstand solar radiation while still being inexpensive. Also, wouldn't it get very hot? It's expected to deal with a planet's amount of heat with a tiny fraction of its mass.

Nope, the L1 point is at 0.99 a.u., so probably 340K temperature, consistent with the average temperature of the Earth

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