7 ms·

I have no doubt at we will try this, plus a lot of even dumber ideas, once the shit really starts to hit the fan. The world is not going to just sit back as Man

I have no doubt at we will try this, plus a lot of even dumber ideas, once the shit really starts to hit the fan. The world is not going to just sit back as Manhattan, Mumbai, Shanghai, Sydney, Rio, etc. disappear under a foot or two of water. Politicians (the same one who spent 50 years failing on this issue) will demand action. It's the best argument I can think of for putting serious research effort into geoengineering, odious as it may be.

danieltillett 10y ago
Artificial trees are not considered geoengineering since they are just reversing the CO2 released. The really sad aspect is we are not putting in the R&D resources needed to develop them to the required scale. No matter what we do about preventing the release of more CO2, we need to deal with the CO2 that has already been released.
- tim333 10y ago
  Regular trees work quite well and are cheaper. You just have to harvest them and not burn the wood, or turn it to biochar.
  - chris_va 10y ago
    Actually burning the wood works just fine, provided you can sequester (see BECCS, along with recent developments in basalt based CCS).
  - danieltillett 10y ago
    There are not enough natural trees to do the job because we have taken most of the really productive land to grow food. While there is some potential to use biochar in some locations, it is not going to be enough to get the CO2 levels down at the pace we need.
baddox 10y ago
It's probably a lot cheaper for those cities to build flood control systems.
- m_mueller 10y ago
  Will still be a wakeup call. And I seriously doubt that flood control (and/or relocation) for all major costal cities will be cheaper than climate engineering.
- zamalek 10y ago
  > build flood control systems. Water is only one problem. By 2070 some places might be uninhabitable according to this[1] study, due to heat. > At WBTs [wet bulb temperature] above 35C, the high heat and humidity make it physically impossible for even the fittest human body to cool itself by sweating, with fatal consequences after six hours. For less fit people, the fatal WBT is below 35C. A WBT temperature of 35C – the combination of 46C heat and 50% humidity – was almost reached in Bandar Mahshahr in Iran in July 2015. At some point it's going to cost big bucks. If the study holds water, the Gulf will either need to be evacuated or artificial habitation will need to be built. [1]: https://www.theguardian.com/environment/2015/oct/26/extreme-heatwaves-could-push-gulf-climate-beyond-human-endurance-study-shows https://www.theguardian.com/environment/2015/oct/26/extreme-...
sevenless 10y ago
I'm very confident the USA will respond effectively to global warming as soon as the Midwest actually sets on fire and not a moment before.
- afarrell 10y ago
  As soon as Houston stops being the 4th largest city in America or people come up with a plan for how to kill a city's main industry without it turning into a hotbed of suicide and violent crime.

danieltillett 10y ago

Artificial trees are not considered geoengineering since they are just reversing the CO2 released. The really sad aspect is we are not putting in the R&D resources needed to develop them to the required scale. No matter what we do about preventing the release of more CO2, we need to deal with the CO2 that has already been released.

tim333 10y ago
Regular trees work quite well and are cheaper. You just have to harvest them and not burn the wood, or turn it to biochar.
- chris_va 10y ago
  Actually burning the wood works just fine, provided you can sequester (see BECCS, along with recent developments in basalt based CCS).
- danieltillett 10y ago
  There are not enough natural trees to do the job because we have taken most of the really productive land to grow food. While there is some potential to use biochar in some locations, it is not going to be enough to get the CO2 levels down at the pace we need.

baddox 10y ago

It's probably a lot cheaper for those cities to build flood control systems.

m_mueller 10y ago
Will still be a wakeup call. And I seriously doubt that flood control (and/or relocation) for all major costal cities will be cheaper than climate engineering.
zamalek 10y ago
> build flood control systems. Water is only one problem. By 2070 some places might be uninhabitable according to this[1] study, due to heat. > At WBTs [wet bulb temperature] above 35C, the high heat and humidity make it physically impossible for even the fittest human body to cool itself by sweating, with fatal consequences after six hours. For less fit people, the fatal WBT is below 35C. A WBT temperature of 35C – the combination of 46C heat and 50% humidity – was almost reached in Bandar Mahshahr in Iran in July 2015. At some point it's going to cost big bucks. If the study holds water, the Gulf will either need to be evacuated or artificial habitation will need to be built. [1]: https://www.theguardian.com/environment/2015/oct/26/extreme-heatwaves-could-push-gulf-climate-beyond-human-endurance-study-shows https://www.theguardian.com/environment/2015/oct/26/extreme-...

sevenless 10y ago

I'm very confident the USA will respond effectively to global warming as soon as the Midwest actually sets on fire and not a moment before.

afarrell 10y ago
As soon as Houston stops being the 4th largest city in America or people come up with a plan for how to kill a city's main industry without it turning into a hotbed of suicide and violent crime.