Climates Multiple: Three Baselines, Two Tolerances, One Normal

Today, Friday 1 January, 2021, the world’s climate is re-set.  Overnight, the world will “become” about 0.5°C warmer, the UK nearly 0.7°C warmer.  This essay, published at Academia Letters, explains what is happening, and discusses its wider significance. Mike Hulme, updated 31 December, 2020 (link refreshed 12 January 2021).