They already set it up here in the US in 2021 with the passage of H.R.794 - Climate Emergency Act of 2021.
All BidenIdiot or whomever after has to do is declare a climate emergency. The thought processes for climate lockdowns are already in place as well.
‘JOHN KERRY WANTS TO EMULATE COVID LOCKDOWNS FOR CLIMATE CHANGE’
https://www.heartland.org/multimedia/podcasts/john-kerry-wants-to-emulate-covid-lockdowns-for-climate-change-guest-gregory-wrightstone
Yeah, I briefly glanced at the Emergency Powers Act here in NV when the locks went up. Pretty much allows the governor to do just about anything he wants. Shut down ALL travel, hold/detain for whatever, shut down business, disallow being outside. Pretty ugly scenarios.