
The realist’s road to zero
January 2022

#1
Concrete and steel
The production of cement and steel requires huge amounts of energy. We can’t do without them, but can they ever be zero-carbon?
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#2
Decarbonizing renewables
There’s no getting round it: to decarbonize the world’s power supply, we are going to have to “spend” a lot of carbon in the process. But there are ways we can reduce the size of the bill.
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#3
The hydrogen economy
Hydrogen could help many of the world’s most carbon-intensive processes to reach net-zero — just as long as we can decarbonize the production of hydrogen itself.
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#4
Nature-based offsets
We could — and should — grow more trees. But that won’t be anywhere near enough to avert the climate crisis. We need to look further than nature-based offsets, and perhaps more closely at forests themselves.
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#5
Carbon capture, utilization and storage
As things stand, almost all decarbonization roads eventually lead to CCUS technology. But there are currently fewer than 30 plants operational worldwide. So how do we get from here to net-zero?
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