一项研究发现,根据古老的沉积物数据,热带土地可能比海洋温暖近两倍。 Tropical land may warm nearly twice as much as oceans, a study finds, based on ancient sediment data.

一项新的研究发现,根据哥伦比亚波哥大盆地的古老沉积物数据,热带陆地地区可能比全球气温升高的海洋更暖和近两倍。 A new study finds tropical land regions may warm nearly twice as much as oceans as global temperatures rise, based on ancient sediment data from Colombia’s Bogotá Basin. 研究人员分析了普利奥塞内时代的3.7百万年记录,当时二氧化碳水平与今天的二氧化碳水平相匹配,显示的热带陆地温度比现在高3.7°C,而海洋温度仅为1.9°C。 Researchers analyzed a 3.7-million-year record from the Pliocene epoch, when CO2 levels matched today’s, revealing tropical land temperatures were about 3.7°C warmer than now, compared to just 1.9°C for oceans. 在《国家科学院议事录》中公布的调查结果表明,目前的气候模型可能低估热带土地变暖,因为陆地数据和反馈机制有限,如持续存在的类似厄尔尼诺现象。 The findings, published in the Proceedings of the National Academy of Sciences, suggest current climate models may underestimate tropical land warming due to limited land-based data and feedback mechanisms like persistent El Niño-like conditions. 结果突出表明,需要更好地进行区域气候预测,特别是人口稠密的热带地区的气候预测。 The results highlight the need for better regional climate projections, especially for densely populated tropical areas.