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Peter du Toit 2y ago

Paleoclimatology helps us understand the past (pictured)

If we are unable to stem the CO2 emission trajectory we are on and at the SAME TIME find a way to remove what is already in the atmosphere (420 ppm) we are going to be going through some things - if the Mid-Pliocene is anything to go by.

Temperatures then were 2.5 to 4°C warmer relative to 1850-1900 and sea levels above 5m relative to 1900 - this all at CO2 concentrations between 360 and 420ppm.

Best we mentally prepare for major disruption to everything we have known.

Image source: Pg 45 https://www.ipcc.ch/report/ar6/wg1/downloads/report/IPCC_AR6_WGI_TS.pdf

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Discussion

Scary times.

Peter du Toit 2y ago

We are going to need to figure out how to adapt faster than the changes, which from the latest instrument data is arriving faster than we thought

Any updates on ocean currents and CC affecting them? I recall reading about AMOC a few years back and findingtheat terrifying

Peter du Toit 2y ago

The latest on the ocean current front is this work coming out of Antarctica

News here: https://newsroom.unsw.edu.au/news/science-tech/deep-ocean-currents-around-antarctica-headed-collapse-study-finds

Paper here: https://www.nature.com/articles/s41586-023-05762-w

Video explainer here: https://vimeo.com/810755521

I love your work mate. Thank you. Got some depressive reading today it looks like!!! Appreciate it.

By the way. Looking through your feed I really appreciate what you do. Bringing us all up to date and synthesising into digestible bites. Thankyou

Peter du Toit 2y ago

🙏🏻

You literally can’t verify any of that information

Enjoy the climate cult