The evils of dihydrogen monoxide have been clearly understood for centuries - no concensus required. The worst of it is even though the US EPA has seen fit to name carbon dioxide as a poison, they still have not acted on dihydrogen monoxide.
In its vapourous state dihydrogen monoxide is the single greatest greenhouse gas of all, by several orders of magnitude. But the IPCC doesn't even mention it. What is wrong with these people?
They couldn't pour water out of a bucket if it had the instructions printed on the bottom.
It's good though to see younger people taking an interest in educating others about this deadly substance.