Using Space Mirrors to Cool How Farms and Forests Can Coexist | Hot Mess 2 days ago   04:43

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Peril & Promise is a public media initiative from WNET telling human stories of climate change and its solutions. Learn more at: http://www.pbs.org/wnet/peril-and-promise/

Humans are running a dangerous experiment on our planet. We're putting more and more carbon dioxide and other gases into the atmosphere, which are trapping the sun's energy, and lo and behold, our planet is heating up in response.

To fix this, we could cut carbon dioxide emissions, but that’s been hard. What if there were a shortcut? What if we could reflect some of the sun’s energy away before it had a chance to get trapped? Like… maybe with space mirrors?!

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Host/Editor-In-Chief: Joe Hanson, Ph.D.
Writer: Adam Levy, DPhil
Creative Director: David Schulte
Editors/Animators: Karl Boettcher
Producers: Stephanie Noone & Amanda Fox
Story Editor: Alex Reich

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Produced by PBS Digital Studios
Theme Music: Eric Friend/Optical Audio
Music: APM
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Comments 354 Comments

finnibert lunchiken
This is great. After an idea like this is implemented then we can start debating how cool the earth should be. Who gets to set and regulate the temperature?
Justin White
Plant more trees (which will absorb co2). It will be a great buffer until we can get China on board with the climate plans.
Roberto Pinna
man you're running out of contents
Zuzana Krenkova
strange, that obviously unfeasible solution (space mirror) is in the title, while the feasible (cloud seeding, by sulphates or salt aerosol) are only hidden inside.
pafnucek
To little to late. Carbon dioxide is not a problem. It's a symptom of a problem. Nobody adresses the single thing underlying the climate change: growth. The only reason to fix the problem is to fix it where its broken, and the broken part is our civilization and technology. We don't need to invent new solutions. We just have to scrap the old ones. Degrade economies. Actively reduce population. Stop economic growth and industrialization. Be poorer than we are and live simpler. But nobody wan't to do that so we are fucked, while waiting for a silver bullet fix.
Sean Kelly
A crash program to eliminate fossil fuel use would result in hundreds of millions of not billions of excess death by the end of the century. Space mirrors are safer, cheaper bet, and their construction will kickstart humanity’s transition to a multiplanetary species.
himinn
Humans would rather turn off the Sun than give up capitalism.
Trigger Troll
The question is ' could space mirrors heat the planet.
DeepSpace12
Lagrange point is about cancelling gravitational pull. But the problem you're trying to solve is photonic pressure. And that is _not_ how orbits work.
David Beaulieu
Short answer no.
Kimber Kim
For over 20 years they've been spraying. Just watch as the contrails turn into clouds and block the sun, the CHANGING sun, the real cause of global temperature. I mean since the LAST ICE AGE, WE'VE BEEN HEATING UP! Go look at the historical data fire yourself.
We are watching a mini ice age begin right before our eyes, major crop losses are very real, most people ARE going to starve to death because you people aren't capable of critical thinking!
When it happens and people are freezing to death, you will all be busy pointing fingers saying "they told us it was getting hot" because none of you seem smart enough to realize that main stream news is fake!
ksmi
I actually saw an idea that went along the lines of “make a bunch of 14x14m glass sheets, make them on the moon out of lunar soil, put 10 billion of them at L1, give them slight automated control of themselves to stay in orbit, come out the other end 30 years later with a bill of 1-10 trillion”. you can find the full paper on Nasa Spaceflight Forums by searching “sunshade”, its a really cool idea
Timothy McLean
As far as last-ditch solutions go, this isn't a bad option...but let's try some of the other ditches first.
Eatenribs
would other places that are getting colder, even colder?
Savage Plays
What if we just put a complete ban over all fossil fuel burning and my renewable sources of energy mandatory
Gowidafloman
HAH!! "VAGilos"
frances gaia
Mirrors would be better than spraying with Tons of HEAVY METALS /TOXIC CHEMICALS
that damage Human Health and
the Environment.
See:
Chemtrails could kill Tens of Thousands of People, says Harvard Professor. (David Keith).
on YouTube.
Sergio Díaz Nila
another shurtcut, go back in time and stop industry all together, turn the world into amish.
Russell Fine Arts
Ridiculous! We just need to eliminate using fossil fuels, plant more trees and stop cutting down forests and we'll be fine. Investing in billions of dollars of mirrors is insane, to the extreme!
Total Annihilation Theory
No technology's exist that could refreeze the arctic sea ice on the scale necessary to save us. There is no saving us . Sad but true. Time to stop repeating that old platitude.  Nothing that humans can do will stop the sea ice and glaciers from melting and the seas rising. This summer the arctic suffered an almost blue water event. Fresh water is pouring into the seas right now and perma frost are melting at a rapid rate all over the world. The release of methane that comes with permafrost and sea bed melting will accelerate warming. Located within zones that will be severely damaged by seas rising are man's greatest folly, the nuclear power plant. Fuchushima has multiple meltdowns doing it's job to help heat the planet with cores burning hotter than the sun. Releasing man made radiation in volumes that dwarf the 2500 nuclear bomb test of the 1940s,50s,60s  combined. We where exposed then and now. There are many things that could possibly happen to bring man to extinction. The fact is glacial and sea ice are rapidly melting right now. Humans are sick in ways never known before our biosphere was irreparably irradiated with man's folly. We are living in uncertain times for sure. There are things to be done now to alleviate suffering in the near future. Move away from the rising sea before you become a climate refugee. These are the things to be thought about now. There is no stopping or fixing this predicament. A mass human migration from the seaside now is the only hope. Humans changed the world for the worse now they need to change to keep from suffering from it. Food could be the next problem. might have to utilize caves and subways etc. to grow in a more controlled environment. Stop thinking about how we can fix it and start thinking about how we are going to live with it. Good Luck we might not can live with it. But what fun to try.
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How Farms and Forests Can Coexist | Hot Mess Using Space Mirrors to Cool 2 days ago   06:05

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Peril & Promise is a public media initiative from WNET telling human stories of climate change and its solutions. Learn more at: http://www.pbs.org/wnet/peril-and-promise/

Deforestation is a big problem for the climate. This kind of land use releases more carbon dioxide into the atmosphere than any single country, besides the United States or China. And most of the deforestation in the world today happens because people want to put farms where forests are. So, figuring out how to farm with trees instead of just chopping them down could help us fight climate change.

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Host/Writer: Talia Buford, ProPublica
Creative Director: David Schulte
Editors/Animators: Matt Donaldson
Producers: Stephanie Noone & Amanda Fox
Story Editor: Alex Reich
Editor-In-Chief: Joe Hanson, Ph.D.


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Produced by PBS Digital Studios
Theme Music: Eric Friend/Optical Audio
Music: APM
Stock images from http://www.shutterstock.com

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