Madrid is also the third city with the greatest impact of climate change on temperatures, followed by Barcelona, Valencia and Zaragoza, according to Climate CentralClimate Central has developed a five-point index to gauge the effect of climate change in a thousand citiesClimate change caused by man affected the temperatures experienced by 7.6 billion people, 96% of the world’s population The study reveals the influence of man-made climate change on the average daily temperatures of each of the days between October 1, 2021 and on September 30, 2022 worldwide, including more than 1,000 cities. This degree of influence of climate change on daily temperatures around the world can now be measured in real time thanks to a new online tool published by Climate Central. This is a new five-point metric called the Climate Shift Index (CSI-), which establishes the extent to which climate change has influenced average daily temperatures in a particular region. A CSI level of 3 means that the day’s temperature became at least 3 times more likely than it would have been without the influence of man-made climate change. The maximum CSI level is 5. With this information, Climate Central has also published the ranking of the most affected cities on each continent during the last year. According to the report, Madrid was the third European city, only behind Valletta (Malta) and Longyearbyen (Norway), which recorded a greater number of days with a CSI level equal to or greater than 3, with 66 days. Following the capital of Spain were Valencia (59 days), Zaragoza (58) and Barcelona (53). In addition, the study takes into account the level of human exposure, by multiplying the population of each city by the total number of days with CSI levels of 3 or higher at that location. Following this scale, Madrid was the European city with the greatest focus of human exposure, while Barcelona, Valencia and Zaragoza ranked fourth, seventh and eighth, respectively. In fact, Madrid was the only European city among the 121 cities in the world with the highest level of human exposure in the period analysed. The report ‘365 days on a warming planet’ has also highlighted that in the last twelve months, the change Man-made climate change affected the temperatures experienced by 7.6 billion people — 96% of the world’s population. People living near the equator and on small islands were especially affected. Mexico, Brazil, West and East Africa, the Arabian Peninsula and the Malay Archipelago experienced the greatest influence of man-made climate change on temperatures during the 365 days analysed.