Reacción a "The summer of 2023 the warmest in 2,000 years in the northern hemisphere, according to a study"

The study thoroughly analyzes summer temperatures over land (excluding the sea) in the non-tropical northern hemisphere (30-90°N) over the last 2,000 years. It concludes that the past summer (June-August) of 2023 was the warmest in 2,000 years and exceeded natural climate variability with 95% certainty. Relative to the pre-industrial period (1850-1900), the summer of 2023 was 2.07 °C warmer. Relative to the entire pre-industrial period analyzed (0-1900), the summer of 2023 was 2.20 °C warmer (this difference is due to the presence of several cold periods before 1850).   

We were already anticipating the northern hemisphere warming up faster, and the last summer being particularly warm due to climate change and the El Niño phenomenon. So this is not an unexpected result. However, it is still alarming and another reminder of the need to accelerate the transition to zero emissions. The importance of this study lies in the analysis of 2,000 years of data, which is not trivial, as the data becomes less precise as we go back in time, which technically complicates the analysis.