Heat waves can be expected about once every 15 years in the U.S. and Mexico, once a decade in Southern Europe, and once every 5 years in China, according to the study.
Climate change primarily caused by burning fossil fuels, chopping down forestland and farming livestock has played an overwhelming role in the extreme heat waves blasting three continents this month.
"Without human induced climate change these heat events would however have been extremely rare," the World Weather Attribution initiative between scientists in Europe, the U.S. and India said on Tuesday.
Climate scientists have warned for decades about bleaching of coral reefs, which are nurseries for commercial fisheries.
This year and next mark the countdown to a 2025 deadline for governments to strengthen their carbon-cutting plans.
The France-based court was created to uphold the European Convention on Human Rights, which took effect in 1953.
Negotiators and officials aim to wrap up so that May's 77th World Health Assembly can consider a proposed text.
Fourteen cases remain under investigation by U.N. investigators, who have met with authorities in Israel.
The chair of the talks called for optimism despite divisions among plastic-producing nations and those urging restraints.
The number of people facing high levels of acute food insecurity has increased every year since 2019.
The group of organizations that reviewed the U.N. agency recommends several ways of strengthening its neutrality.
