二 | 据英国广播公司(BBC)13日报道，目前人们对于能源供应的担忧日益加剧，天然气价格也在飙升，科研人员认为，由于可再生能源的成本在下降，目前的绿色环保在经济层面也是有收益的。    New Zealand is perfectly fine with you pooping and peeing in public, as long as you make sure you aren’t being watched. But more restrictions on doing your business outdoors may be coming to the island nation soon.,Freedom Camping is camping on public land without paying a fee and is an activity quickly growing in popularity in New Zealand. In 2019, the year before the country shut down tourism due to the COVID-19 pandemic, more than 245,000 freedom campers enjoyed New Zealand’s famous landscapes while “freedom camping.” Of those, only 91,000 were Kiwis, indicating freedom camping is becoming a major tourist attraction for the small country.,However, it is also causing problems, something the Responsible Campers Association (RCA) wants to fix by adding more regulations on where freedom campers do their personal business and what they do with it after they are done.,'Crappiest Fountain Ever': UK Envoy's Husband Slashes Controversial New Zealand Landmark30 May, 10:23 GMT,The association wants new rules mandating that excrement must be buried at least 15cm (5.9 inches) and must be done at least 15 meters (49.2 feet) away from the nearest waterway.,The plea comes after multiple localities banned freedom campers from popular destinations because of a perceived increase in human waste and toilet paper being left at sites around the country. The issue became so heated that New Zealand’s tourism minister Stuart Nash told Radio New Zealand that freedom campers “pull over to the side of the road and … s*** in our waterways.”,The spokesperson for the RCA, Bob Osborne, says that blaming freedom campers is unfair. “There is no evidence linking any specific group to this undesirable practice which affects travelers all over New Zealand,” he said.,While the RCA advocates for a more permanent solution of more public restrooms, Osborne says that in the meantime, mitigation of the worst side effects of public defecation can be a solution, namely burying excrement and toilet paper and keeping it out of water sources. The association also stresses that campers should not be punished for the actions of a few bad apples, and that bad behavior should be punished, not camping itself.,Technically, public defecation is an offense in New Zealand that can result in a $200 fine, but that fine will be waived if the offender can show they had reason to believe no one could see them doing their business. Nash will be introducing new regulations to parliament later this year, including harsher fines for bad behavior and restrictions on where freedom campers can park.,With COVID-19 restrictions on tourism being lifted in the country, 2022 is expected to be a big year for freedom camping in New Zealand. With unburied defecation still allowed under law, campers are advised to watch where they step.。牛津大学马丁学院新经济思想研究所的多恩·法尔莫教授对媒体表示：“即使你是一名对气候变化持否认态度者，也应该赞同我们的主张。我们的关键结论就是，应该全速推进向可再生绿色能源的转型，这将为我们节省大量资金。” 这份研究报告的结果来自于对可再生能源和化石能源历史价格的对比数据，并对两者未来可能发生的变化进行建模预测。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)