This Shackleton et al. (2023) @NatureGeosci study presented a method of converting the ocean core oxygen isotope ratios (δ18O) to a Global Energy Anomaly, which can be used to estimate Earth's Energy Imbalance over the past 150,000 years:
https://www.nature.com/articles/s41561-023-01250-y
https://www.nature.com/articles/s41561-023-01250-y
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But all these signs together paint a worrying picture.
We'd better act accordingly.
Precautionary principle!
https://bsky.app/profile/leonsimons.bsky.social/post/3lgecqkqmms2v