Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.
As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades:
How much each change to the atmosphere has warmed the world:
Recommended actions to cut greenhouse gas emissions in the near future:
Anti-science, inactivism, and unsupported conspiracy theories are not ok here.
Water reuse is a great idea. Although it's worth pointing out that the UK looses 20% of it's water to leakage before it reaches anyone[0]. Private water companies taking a basic amount of responsibility for maintaining their assets would do a lot before even talking about water reuse, rain harvesting etc.
The UK currently doesn't do even the most trivial of reuse. But the privatised water companies would rather impose metering followed by price increases to deter consumption, since that'll mean more money for them.
Honestly, it's ridiculous how poorly we've allowed the water companies to run.