
一 | Singer Jimmy Buffett, who died Friday at the age of 76, battled skin cancer for years before his death, according to a statement on his website.Buffet suffered from Merkel cell cancer, which he was diagnosed with four years before his death, his website said. Merkel cell cancer is very rare, according to the National Cancer Institute. Risk factors include sun exposure, having a weak immune system and being older than 50. It tends to grow quickly and spread at an early stage to nearby lymph nodes and then to lymph nodes or skin in other parts of the body, including the lungs, brain, bones and other organs. Buffet continued to perform during his treatment. His last show was a surprise appearance in Rhode Island in early July, according to his website. In 2022, Buffett rescheduled tour dates because of health issues and a "brief hospitalization." Those tour dates were meant to take place at the end of 2022 and were rescheduled for 2023. In May, he canceled a South Carolina concert after being hospitalized.

二 | 石油、天然气等化石能源的数据可以从2020年向前追溯100多年,在排除通货膨胀和市场波动影响后,化石能源的价格变化并不大。相比之下,可再生能源诞生不过几十年,数据较少,但就在这几十年里,因为科技的不断进步,也促使太阳能、风能的成本在以每年大约10%的速度迅速下降。基于该模型,这份研究预测:在投入了大量资金、形成规模经济和采用更廉价的技术后,可再生能源的价格未来将继续下跌。该研究报告的主要作者史密斯企业与环境学院的鲁珀特·韦博士表示,“扩大关键绿色技术的规模,将导致成本继续降低;我们前进得越快,节省的成本就越多。”目前,风能和太阳能已经是新建电力项目中最便宜的选择,但人们还需要研究,如果发生天气变化,导致可再生能源产量下降时,如何最好地储存电力、平衡电网等具体问题。2019年,英国时任财政大臣菲利普·哈蒙德曾在给首相的信中指出,到2050年,英国为实现温室气体“零排放”的成本将超过1万亿英镑,如此高的预期投入或将阻碍投资。(董铭)
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