Tuesday briefing: Why 2023 was a watershed year for the climate crisis

In today's newsletter: The last 12 months will be remembered for record-breaking temperatures, but also for government-backed clampdowns on climate protesters

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Record after record has been broken this year. Antarctic sea ice hit mind blowing" lows; greenhouse gas levels and global temperatures hit record highs, as did ocean temperatures, and there has been unprecedented mass coral bleaching. Another alarming record was hit on 17 November when the Earth briefly hit 2C of warming above pre-industrial levels for the first time.