Climate models have accurately predicted global heating, study finds

https://www.theguardian.com/environment/2019/dec/04/climate-models-have-accurately-predicted-global-heating-study-finds

Dana Nuccitelli
Wed 4 Dec 2019 12.00 EST
Last modified on Thu 5 Dec 2019 05.48 EST

Climate models have accurately predicted global heating for the past 50 years, a study has found.

The findings confirm that since as early as 1970, climate scientists have had a solid fundamental understanding of the Earth’s climate system and the ability to project how it will respond to continued increases in the greenhouse effect. Since climate models have accurately anticipated global temperature changes so far, we can expect projections of future warming to be reliable as well.

•••••

“We found that climate models – even those published back in the 1970s – did remarkably well, with 14 out of the 17 model projections indistinguishable from what actually occurred,” said Zeke Hausfather, of the University of California, Berkeley, and lead author of the paper, published in the journal Geophysical Research Letters.

Based on modern climate model projections, if countries follow through with current and pledged climate policies, the world is on track for about 3C of warming above pre-industrial temperatures by 2100 – a situation the IPCC and others predict would be catastrophic.

•••••