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What appears to be missing from this discussion is that renewables are not enough: >Our hardest climate problems – the ones that are both large and lack obviou
by qPM9l3XJrF 6y ago
What appears to be missing from this discussion is that renewables are not enough:
>Our hardest climate problems – the ones that are both large and lack obvious solutions – are agriculture (and deforestation – its major side effect) and industry. Together these are 45% of global carbon emissions. And solutions are scarce.
>Agriculture and land use account for 24% of all human emissions. That’s nearly as much as electricity, and twice as much all the world’s passenger cars combined.
>Industry – steel, cement, and manufacturing – account for 21% of human emissions – one and a half times as much as all the world’s cars, trucks, ships, trains, and planes combined.
https://techcrunch.com/2019/02/15/how-to-decarbonize-america-and-the-world/ https://techcrunch.com/2019/02/15/how-to-decarbonize-america...
We need to start putting just as much research effort into these areas as went into renewables.
- kieranmaine 6y agoThis podcast (https://www.npr.org/transcripts/923966126 https://www.npr.org/transcripts/923966126) has some interesting info on lowering the CO2 emissions of concrete.
- marcosdumay 6y agoMost of industry can use renewables just fine. Chemical ones need carbon that, if energy is plentyful can be captured from the atmosphere. The agriculture number is mostly methane. Methane is different from CO2 in that it's short lived, so it doesn't keep adding up after a certain amount. Just adding it to the CO2 emmissions us very misleading. We do need research, but renewables are a key part for solving those problems too.