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Study Warns Deadly Ocean Upswells Increasing Due to Climate Crisis. 'The Guardian' reports that a new study highlights how the climate-disrupted ocean has pushed a number of aquatic species to flee increasing temperatures in the tropics. The forced migration has increasingly resulted in sharks, rays and other species dying amid intense upswells of cold water from the depths of the ocean. In 2021, extreme cold upswelling off of South Africa's coast caused a mass die-off of over 260 marine organisms from 81 different species. A recent study found that these upswellings are increasing in both frequency and intensity. Scientists were able to study the 2021 mass die-off in precise detail, due to one of the victims being a satellite-tagged bull shark. The bull shark died in waters 10 degrees Celsius below the temperature tropical species are accustomed to. Despite the shark's attempts to avoid the cold swell, it could not escape the impacted area before succumbing to hypothermia. 'The Guardian' reports that the team found that the frequency of these cold upswelling events has been increasing since 1981. Other species killed in similar events include whale sharks, bigeye trevallies, convict surgeonfish and the common blacktip shark. The team's findings were published on April 15 in 'Nature Climate Change’. THIS VIDEO MUST NOT BE EDITED FOR LENGTH TO COMBINE WITH OTHER CONTENT