Can Geoengineering “Undo” Climate Change? I NOVA I PBS

It might be too late to prevent every climate-change-related catastrophic event from happening. But there is a way to reverse some of the damage from our emissions.

Discover how geoengineering solutions — from techniques as natural as planting trees, to vacuuming CO2 out of the air, to science-fiction alternatives like blocking sunlight — can help humanity turn the tide on climate change, and why these approaches are controversial.

PRODUCTION CREDITS:

Narrated by: Caitlin Saks
Produced by: Ana Aceves
Research and Production: Haley Apicella, Sukee Bennett, Ari Daniel, Robin Kazmier, Christina Monnen, and Caitlin Saks
Science Advisor: Scott Denning

Animations:
Mitch Butler
UNIT TV & Film

© 2020 WGBH Educational Foundation

[Who-vtoh]

All of these horrors we face, and all the solutions mentioned not ONE includes rethinking our economic system. Disgusting.

[TimeTheory]

Thanks PBS Nova 👍
Putting more crap in the atmosphere is NOT the answer. Industry & Big OiL already know the solution. Their just too greedy to do anything to correct the problem, unless government's unite globally and force them. Because most manufacturing is done in Asia, with cheep coal to run power plants, I don't think anything will be corrected soon. Solar power is our best answer.

[colorado]

I thought there would be better arguments against it besides it having unknown effects. Now I think I support it.

[stephaniewilliams]

No, it can’t! We’ve tried it since the 90’s (at least) and it is only making it worse and killing off all life! We’re stopping it now!

[Benjamin_S.]

So you guys are totally ignoring enhanced mineral weathering? Like that Project Vesta thing with crushing olivine to absorb co2. They say $10 per ton at scale... so only about 360 billion $ / year to offset the worlds co2 production. which is like only like 0.24% of global gdp.

[bobleclair]

If co2 is such a problem, why do they put it in beverages, I hear a can of soda has 2+- grams of co2 in it

[macrossactual]

And it's the sub plot of the Highlander trilogy.

[ronhaytack]

Why aren't more people watching this Why are people ignoring or denying the reality???!!!!

[SolaceEasy]

Sometimes I really question the editing in that you give some really bad images or incongruous images or images somehow not matching the dialogue. This can cause a drop in concentration. For example, the last video of flooding shows a family walking in the flooded area when it is unnecessary. The eldest male is not walking in the water. Poor editing choices.

[NickyMitchell]

Can’t we just build a huge direct-air-capture with 50 million units? Or isn’t there a type of miracle bleach that, if added to the sky 🌌 could suck up 🆙 all the CO2 we’ve emitted into the atmosphere but more than that, reflect the suns rays back into space? What about using CW-7 in the movie 🎥‘Snowpiercer”? Does that cooling agent exist in real life?

[travistippetts]

I think the answer will ultimately be a combination of multiple ideas. Like a shot gun. But all the ideas need to be good ideas.

[racurv]

I think when you try to play God, you're going to have some bad intended consequences.

[paule]

Tell them to STOP Geoengineering, NOW ! This vid is BS. God Bless.

[PrincessTS]

i think a hot and wet planet is far better for humanity than a cold and icey planet so no i dont want to undo climate change im ok with it.