Humans have caused 1.5 °C of long-term global warming according to new estimates

Looking into the numbers a couple if months ago I was surprised how little it costs to stop climate change.

On the order of 100-200 trillion USD. Which is roughly 100-200% of global yearly GDP. Or 2-5% of yearly GDP until 2050. This could well be provided by printing money at all the federal reserve banks.

This investment will likely bring in a positive return on investment because it reduces the negative climate impacts.

Without such investments the downstream costs in climate change adaptation will be very expensive

If you're referring to he economist one, I've read it too, and I think it would be much cheaper.

But anyway, I don't believe half the numbers out there.

To cut emissions, we need to kill materialism, consumption economy and most importantly tell people that they should choose between what's good for them (eating a burger to make them happy) or the planet (not bringing the equivalent pollution of driving an SUV 50 miles+ by eating something much less polluting than beef).

Governments will keep chasing the kind of changes that can only make more money, not less.

I understand your point and I have also long held the point of view, but have recently learned that this isn't the right framing. You - as a citizen - don't need to reduce your consumption, but we as a society must manage that all activities are priced properly.

One example is air traffic. If you don't consume an available flight, then you don't actually help the climate, because somebody else will buy the seat at a lower price. This is just market economics. To reduce flying the society already has put Carbon credits out there for airlines to buy if they want to fly from A to B. These credits reflect the cost which society puts on flying currently.