I sat and watched German N-TV news this PM. Item came up with a curious footnote.
Germany has a requirement presently....they need concrete to build an entire new 'Berlin-City' every single month....for the next 40 years.
All of this is causing a 'crush' on C02 numbers (world construction is taking up 8-percent of C02 emissions....meaning destruction of the planet, and DOOM to mankind.
I hadn't really thought much about it.....but when you mix up concrete....you have to heat up limestone to 1450 C, and presently that's a lot of fossil fuel.
So they are inventing a different substance called Biochar.....thus skipping a lot of this heat requirement.
The odds that this won't be as 'holding' as concrete? Well....they didn't really say much to give me a good feeling. I can just see...in 30 years....some building built with Biochar collapsing, and suddenly everyone is desperate to get gone from this type of building built this way.
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