作者：开海 来源：原创 发布日期：08-24
A | (ECNS) -- Hot days worldwide could experience around four additional hours of extreme heat by the end of the 21st century under a high-emissions scenario, according to a study led by Chinese researchers. Published in Nature Climate Change, the study found that traditional daily temperature indicators may overlook shorter periods of extreme heat, while hourly temperature analysis can provide a more detailed picture of heat exposure and associated risks. Researchers from Sun Yat-sen University and other institutions analyzed global hourly temperature data from 1981 to 2023, combining observational records with climate model projections to assess how extreme heat exposure could change in the future. The research team found that the duration of extreme heat increased by 62 hours per decade over the study period. Around 28% of extreme heat events occurred on days that would not have been classified as hot days based on conventional daily temperature indicators. Under a high-emissions scenario known as SSP5-8.5, the researchers projected that between 2070 and 2099, each hot day could experience around four additional hours of extreme heat compared with the 2001-2023 period. Days not classified as hot could also see increased periods of extreme heat. The study also found that low- and middle-income countries account for a disproportionately large share of both current and projected extreme heat exposure. Younger generations in low-income countries are expected to experience the greatest increase in lifetime exposure. Researchers said the findings could help improve heat-warning systems, strengthen assessments of health risks and support climate adaptation efforts. (By Helen Mo, intern Liu Shuangjing) 
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B | Reese’s may be in violation of state and federal laws with its new sweepstakes offer currently advertised on packs of peanut butter cups.The promotion on two-cup packages reads “You could win $25,000” and, in smaller print, “See details inside.” But only after consumers have bought and opened a package can they see the small print: no purchase is necessary to enter the sweepstakes.The Reese's contest was first reported Monday by Edgar Dworsky, a consumer advocate and former assistant attorney general in Massachusetts, who runs the Consumer World website.Hershey Co., that Pennsylvania candymaker that owns the Reese’s brand, didn’t immediately respond to telephone and email messages left Monday by The Associated Press.Sweepstakes are primarily governed by state laws, which require that no purchase is necessary to participate. A contest that requires a purchase is a lottery, which is subject to different rules.Three federal agencies __ Federal Trade Commission, the Federal Communications Commission and the U.S. Postal Service __ also enforce laws governing sweepstakes depending on the medium. The Postal Service requires mailed sweepstakes offers to make clear that no purchase is necessary, for example. The FTC doesn't govern sweepstakes specifically, but has broad laws prohibiting “unfair and deceptive acts.”The FTC said Monday that it can’t comment on the practices of particular companies outside of an investigation. It wouldn’t confirm or deny an investigation against Hershey.Dworsky said a sign near Reese’s candy displays making clear that no purchase is necessary might meet legal requirements. But a spot check of candy displays in multiple states __ including California, Virginia and Washington __ found no such signs.Dworsky noted that Reese's ran a similar promotion earlier this year that ended in April using the same packaging. Some of those packages are still for sale, even though the sweepstakes code has expired, he said.Dworsky said he's concerned that the packaging could lure consumers into thinking they need to buy it.“You never have to pay to play. All these packages should be recalled," he said.。
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