1,000,000,000,000 tons of CO2 / (28.5 tons of CO2 per wooden house) = 35 billion wooden houses.
If you just want to achieve carbon neutrality, we're outputting 40 billion tons of CO2 per year.
(40,000,000,000 tons of CO2 per year) / (28.5 tons of CO2 per wooden house) = 1.4 billion wooden houses, per year
That's not feasible for many reasons.
We need and use cement and aggregate anyway, and it's a large emitter of carbon. It's good that someone discovered a way to use it to sequester CO2 to reduce or offset its carbon emissions.
Yes. More fundamentally than housing, this is about demographics. Human population will peak soon and then decline. Wether degrowth is embraced or forced upon actors who whine about it is the main question. Its increasingly looking like that latter, which I personally refer to as angry degrowth
I think it's probably better to think of it more as top down (club of rome, malthusians, austerity measures) vs bottom up (kohei saito, eco-socialists, shorter work weeks) degrowth.
Its fundamentally not possible to replace NEW cement production with recycled cement without degrowth. The nice thing about degrowth -- and lets be very serious here: degrwoth IS happening in China, and many other demographically unbalanced socitieties wether you like it or not -- is that it enables a completely circular economy whereby most minerals and even things like cement can be 100% sourced from the existing materials with no need for additional raw inputs. That's what this paper is fundamentally about.
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[ 5.3 ms ] story [ 36.6 ms ] thread1,000,000,000,000 tons of CO2 / (28.5 tons of CO2 per wooden house) = 35 billion wooden houses.
If you just want to achieve carbon neutrality, we're outputting 40 billion tons of CO2 per year.
(40,000,000,000 tons of CO2 per year) / (28.5 tons of CO2 per wooden house) = 1.4 billion wooden houses, per year
That's not feasible for many reasons.
We need and use cement and aggregate anyway, and it's a large emitter of carbon. It's good that someone discovered a way to use it to sequester CO2 to reduce or offset its carbon emissions.
https://tradingeconomics.com/china/housing-index
And the only thing that can exponentially grow without any limitations is a cancer. (Until it kills the host, that is.)