←back to thread

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

(www.lancaster.ac.uk)
399 points gmays | 2 comments | 17 Nov 24 18:49 UTC | HN request time: 0.426s | source
Show context
oezi ◴[17 Nov 24 19:06 UTC] No.42166179[source]▶
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

replies(15): >>42166197 #>>42166228 #>>42166244 #>>42166268 #>>42166281 #>>42166295 #>>42166298 #>>42166311 #>>42166377 #>>42166407 #>>42166458 #>>42166521 #>>42166737 #>>42167052 #>>42167400 #
1. jjtheblunt ◴[17 Nov 24 19:38 UTC] No.42166458[source]▶
> Looking into the numbers a couple if months ago I was surprised how little it costs to stop climate change.

Do you account for unpredictable, but climate changing, events like solar flare activity and volcanic activity, which also can contribute?

replies(1): >>42166565 #
2. oezi ◴[17 Nov 24 19:48 UTC] No.42166565[source]▶
I recall the numbers are about reducing the man-made emissions to net-zero by 2050. I believe this must include some measures which counteract emissions which can't be reduced.