Any sufficiently large problem (eg: climate action) will have a global response (which may or may not be a solution) with the following pecking order:
Global banks
Nation-state
Major cities
Stateless actors
In-nation tribes
Tech industry
U.N. bureaucrats
Scientists
Laypeople
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Surprised by global banks being above nation states here. There's some gradation in nation states that would put the most powerful ones among banks, and the least under cities.
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