到2070年，世界上1/3的人口将会笼罩在撒哈拉般的热浪中
<p><span word="A">A</span> <span word="Third">Third</span> <span word="of">of</span> <span word="the">the</span> <span word="World">World</span>'<span word="s">s</span> <span word="Population">Population</span> <span word="Could">Could</span> <span word="Be">Be</span> <span word="Blanketed">Blanketed</span> <span word="in">in</span> <span word="Sahara">Sahara</span>-<span word="Like">Like</span> <span word="Heat">Heat</span> <span word="by">by</span> 2070</p><p>到2070年，世界上三分之一的人口将会笼罩在撒哈拉般的热浪中</p><p><span word="Brain">Brain</span> <span word="geniuses">geniuses</span> <span word="like">like</span> <span word="Elon">Elon</span> <span word="Musk">Musk</span> <span word="may">may</span> <span word="want">want</span> <span word="to">to</span> <span word="colonize">colonize</span> <span word="Mars">Mars</span>, <span word="which">which</span> <span word="sure">sure</span>. <span word="But">But</span> <span word="for">for</span> <span word="simpletons">simpletons</span> <span word="like">like</span> <span word="me">me</span>, <span word="keeping">keeping</span> <span word="Earth">Earth</span> <span word="mostly">mostly</span> <span word="habitable">habitable</span> <span word="seems">seems</span> <span word="like">like</span> <span word="a">a</span> <span word="better">better</span> <span word="use">use</span> <span word="of">of</span> <span word="time">time</span> <span word="and">and</span> <span word="resources">resources</span>.</p><p>像埃隆·马斯克这样的大脑天才可能想要征服火星，好吧，这是肯定的。但是对于像我这样的傻瓜来说，让地球的大部分都适合人类居住似乎是对时间和资源的更好利用。</p><p><span word="If">If</span> <span word="carbon">carbon</span> <span word="emissions">emissions</span> <span word="are">are</span> <span word="allowed">allowed</span> <span word="to">to</span> <span word="continue">continue</span> <span word="unchecked">unchecked</span>, <span word="though">though</span>, <span word="that">that</span> <span word="may">may</span> <span word="be">be</span> <span word="a">a</span> <span word="tough">tough</span> <span word="proposition">proposition</span>. <span word="According">According</span> <span word="to">to</span> <span word="a">a</span> <span word="new">new</span> <span word="study">study</span>, <span word="extreme">extreme</span> <span word="heat">heat</span> <span word="now">now</span> <span word="only">only</span> <span word="found">found</span> <span word="in">in</span> <span word="parts">parts</span> <span word="of">of</span> <span word="the">the</span> <span word="Sahara">Sahara</span> <span word="could">could</span> <span word="spread">spread</span> <span word="to">to</span> <span word="nearly">nearly</span> 20 <span word="percent">percent</span> <span word="of">of</span> <span word="the">the</span> <span word="globe">globe</span> (<span word="and">and</span> <span word="nearly">nearly</span> <span word="a">a</span> <span word="third">third</span> <span word="of">of</span> <span word="humanity">humanity</span>) <span word="if">if</span> <span word="carbon">carbon</span> <span word="emissions">emissions</span> <span word="aren">aren</span>’<span word="t">t</span> <span word="curtailed">curtailed</span>. <span word="The">The</span> <span word="paper">paper</span>, <span word="published">published</span> <span word="on">on</span> <span word="Monday">Monday</span> <span word="in">in</span> <span word="the">the</span> <span word="Proceedings">Proceedings</span> <span word="of">of</span> <span word="the">the</span> <span word="National">National</span> <span word="Academy">Academy</span> <span word="of">of</span> <span word="Sciences">Sciences</span>, <span word="makes">makes</span> <span word="a">a</span> <span word="pretty">pretty</span> <span word="compelling">compelling</span> <span word="case">case</span> <span word="to">to</span> <span word="cut">cut</span> <span word="carbon">carbon</span> <span word="emissions">emissions</span> <span word="and">and</span> <span word="not">not</span> <span word="fry">fry</span> <span word="the">the</span> <span word="world">world</span>.</p><p>然而，如果碳排放继续不受限制，这可能是一个艰难的事情。根据一项新研究，如果不减少碳排放，目前只在撒哈拉沙漠部分地区发现的极端高温可能会蔓延到全球近20%的地区（波及近三分之一的人类）。这篇周一发表在《美国国家科学院院刊》上的论文为减少碳排放，不让全球变暖提出了一个相当有说服力的理由。</p>
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