That the public are not being allowed to grasp the true nature of ecosystem collapse and abrupt climate change is a terrible wrong.
However,
When the truth of ecological calamity becomes clear to all in the coming decades, people will probably have similar reactions as now, somewhere on the spectrum of
"But Ben, what can we do?"
Keep informing every person you know/meet. Keep supporting anything which might lead to a new postgrowth economy, justice, an end to mass poverty.
If you have soil, why not grow your own food to feed yourself and share with others? Food systems will come under increasingly extreme pressure now.