Climate Change: A new analysis by Climate Central reveals that global temperatures have set a new 12-month record, surpassing 1.3 degrees Celsius above pre-industrial levels from November 2022 to October this year. This period marks the hottest year-long stretch in recorded history, with 170 countries experiencing mean temperatures exceeding 30-year normals.
Global Temperatures Reach Alarming High, Breaking 12-Month Record, Says Climate Central
According to the analysis using the Climate Shift Index (CSI), 99% of the global population, or around 7.8 billion people, were exposed to above-average temperatures during this period. Only Iceland and Lesotho recorded cooler-than-normal temperatures.
The Climate Shift Index, Climate Central’s daily local temperature attribution system, employs a peer-reviewed methodology to attribute climate impacts. The analysis, based on a study published in the journal of Advances in Statistical Climatology, Meteorology, and Oceanography, indicates that human-caused climate change significantly contributed to the elevated temperatures over the past 12 months. The index categorizes the likelihood of climate change influence, with level 3, for example, signifying that human-induced climate change made those temperatures at least three times more likely.
The analysis covers daily average temperatures and heat waves
The analysis covers daily average temperatures and heat waves, encompassing data from 175 countries, 154 states, and 920 major cities. While least developed countries and small island nations faced the highest exposure to climate-driven heat, intense heat waves were recorded globally, including in the United States, Europe, India, and China.
Jamaica, with an average CSI of 4.5, recorded the highest impact of climate change, making temperatures more than four times more likely. Guatemala (4.4) and Rwanda (4.1) also reported high average CSI values, emphasizing the widespread impact of climate change across the globe.
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