The daily highs are an indication that climate change is reaching uncharted territory, scientists say.
Jerome Haegeli, Swiss Re's group chief economist who analyzes economic and insurance market research, shares how the sector is looking at the risks of climate change., the latest grim milestone in a week that has seen series of climate-change-driven extremes.
Steam and exhaust rise from different companies in Oberhausen, Germany. Wednesday, July 5, 2023 tied with Tuesday, July 4, for Earths hottest two days on record to track the Earth’s warmingWhile some countries had colder weather than usual, high-temperature records were surpassed this week in Quebec and Peru.In North Grenville, Ontario, the city turned ice hockey rinks into cooling centers as temperatures Wednesday hit 32 degrees Celsius , with humidity making it making it feel like 38 degrees .
Scientists have warned for months that 2023 could see record heat as human-caused climate change, driven largely by the burning of fossil fuels like coal, natural gas and oil, warmed the atmosphere. They also noted that La Nina, the natural cooling of the ocean that had acted as a counter, was giving way to El Nino, the reverse phenomenon marked by warming oceans.
"Temperatures have been unusual over the ocean and especially around the Antarctic this week, because wind fronts over the Southern Ocean are strong pushing warm air deeper south," said Raghu Murtugudde, professor of atmospheric, oceanic and earth system science at the University of Maryland and visiting faculty at the Indian Institute of Technology, Bombay.
University of Maine climate scientist Sean Birkel, creator of the Climate Reanalyzer, said the daily figures are unofficial but a useful snapshot of what’s happening in a warming world.Even though the dataset used for the unofficial record goes back only to 1979, Kapnick said that given other data, the world is likely seeing the hottest days in "several hundred years that we’ve experienced.
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