Think climate change is chaotic?Wait until geoengineering


Wired: Will we notice this? Visually, will we see anything?

KR: Yes, absolute scale. It changes the ratio of direct radiation and diffuse radiation. So the idea is that the sky will become whiter on average, for example, the sunset will become more vivid. It is definitely much smaller than the difference from the California desert to the urban area. In my opinion, the white sky is not the biggest problem either.

Wired: Any questions about toxicology? Is this kind of thing harmless to life on earth?

KR: This is not benign-it is the same as what a power plant produces. Its large concentration in one area can make people and crops sick. However, in terms of scale, the amount you need in the stratosphere is much smaller than the amount we emit from power plants, and it is distributed across the planet.

People have also conducted some research on this, and it seems that the biggest risk brought by particles may be the impact on a certain sensitive high-latitude ecosystem-so polar ecosystems will not be subject to too much urban pollution at present, but they will get from it. More. Especially because the particles usually move towards the poles before they settle out of the stratosphere.

Wired: Suppose a country unilaterally says, “We want to do this.” They want to cool their own country by spraying the stratosphere, regardless of whether it will orbit the earth.

KR: Legally speaking, this is complicated, because countries basically have their own airspace. This is a bit ambiguous. So people can spray things in their country and then all over.and then [the particles] The average stay in the atmosphere is about one and a half years. They spread, and the radiation effect takes effect immediately. This is why after a large-scale volcanic eruption, you will see the global temperature drop immediately, last for about one to two years, and then drop again. So you don’t necessarily need to spray things every day. If you stop doing this for two years, the effect will disappear.

Climate Change Connection Guide

The world is getting warmer and the weather is getting worse. This is all you need to know about what humans can do to stop the destruction of the planet.

It’s hard for me to see our situation no Plan to do it at this point, in fact, because it is too cheap. The effects of climate change have become so devastating that I cannot see in this world how such a low-cost solution can not be implemented by someone. Nothing else in the world can cool the earth so quickly.Even if we start to decarbonize quickly Remove carbon dioxide from the atmosphere, The result is still a ten-year timetable. While blocking the sunlight, the climate reaction will begin immediately.

Connection: I have seen some models, if you suddenly stop solar geoengineering, you will encounter temperature problems Climb sharply and endanger species.

KR: If the plan is interrupted and we prevent a lot of warming through stratospheric geoengineering, if someone stops doing this, you will get this very rapid warming. I mean, if we also stop processing our drinking water, it will be catastrophic, right? There are some things that humans need to continue to do, otherwise it will be catastrophic.



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