Instigate

Why water

Because it’s one of the most abundant resources available on earth that is imperative to our understanding of the existence of life and is the commonest solution regularly used by humans in scenarios where temperature is a relevant factor.

why sea level?

Because vast swathes of humanity live at or near sea level, where we already arbitrarily nominate the level of atmospheric pressure to be 1 ATM.

While K has a natural zero-point, the gradation (by your logic) is entirely arbitrary as well because it’s based on C and not some other cosmological constant.

It’s going to be a question of momentum: will those on the left of the party keep pushing back against corporate interests and organising at a grassroots level. I sincerely hope that the momentum grows, but the power of the money being used against them is a pretty terrible beast. It’s definitely an interesting crossroads at the very least.

In a lot of jurisdictions it’s also not illegal to be under the influence of a narcotic unless there are other factors involved - driving a car, being a public nuisance, or otherwise engaging in criminal behaviour. If you’re high in your own home not bothering anyone (and you’ve already taken all the drugs you have so you’re not otherwise in possession of any) you’re not committing a crime. That would apply in this case.