文档库 最新最全的文档下载
当前位置:文档库 › 外刊阅读-我们需要“捕捉碳”来应对气候变化

外刊阅读-我们需要“捕捉碳”来应对气候变化

外刊阅读-我们需要“捕捉碳”来应对气候变化
外刊阅读-我们需要“捕捉碳”来应对气候变化

原文期刊:科学美国人原文标题:We Need to Capture Carbon to Fight Climate Change

本文选自2018年8月1日《科学美国人》一的篇文章。作者指出,面对气候变化的严峻挑战,政府和企业应积极利用CCUS技术,捕获、利用、储存碳,完成减碳目标。行文脉络:引出话题:应利用CCUS应对气候变化(第一、二段)——介绍CCUS的最新进展、必要性、益处(第三、四、五段)——CCUS 面临的反对及作者对此的反驳(第六段)——提出建议(第七段)。

【原文】

I ①The conclusion of the Paris Agreement in 2015, in which almost every nation committed to reduce their carbon emissions, was supposed to be a turning poi nt in the fight against climate change. ②But many countries have already fallen behind their goals, and the U.S. has now announced it will withdraw from the agreement. ③Meanwhile emissions worldwide continue to rise.

II ①The only way to make up ground is t o aggressively pursue an approach that takes advantage of every possible strategy to reduce emissions. ②The usual suspects, such as wind and solar energy and hydropower, are part of this effort, but it must also include investing heavily in carbon capture, utilization and storage (CCUS)—a cohort of technologies that pull carbon dioxide from smokestacks, or even from the air, and convert it into useful materials or store it underground.

III ①Although CCUS has been opposed as too expensive and unproved, recen t gains have made it far more effective. ②Improvements such as chemical compounds that are more efficient at latching onto carbon could drive the cost down from $100 per ton of captured carbon in 2016 to $20 per ton by 2025, according to a 2016 article in Science. ③Start-ups are also developing new tactics, among them the transformation of trapped carbon into fertilizer, which could spur further savings.

IV ①Without CCUS, the level of cuts needed to keep global warming to two degrees Celsius (3.6 degrees Fahrenheit)—the upper limit allowed in the Paris Agreement—probably cannot be achieved, according to the International Energy Agency. ②By 2050 carbon capture and storage must provide at least 13 percent of

the reductions needed to keep warming in check, the agency calculates.

V ①CCUS technologies can also help decarbonize emissions in heavy industry—including production of cement, refined metals and chemicals—which accounts for almost a quarter of U.S. emissions. ②In addition, direct carbon-removal technology—which captures and converts carbon dioxide from the air rather than from a smokestack—can offset emissions from industries that cannot readily implement other clean technology, such as agriculture.

VI ①The basic idea of carbon capture has faced a lot of o pposition.

②Skepticism has come from climate deniers, who see it as a waste of money, and from passionate supporters of climate action, who fear that it would be used to justify continued reliance on fossil fuels. ③Both groups are ignoring the recent advan ces and the opportunity they present. ④By limiting investment in decarbonization, the world will miss a major avenue for reducing emissions both in the electricity sector and in a variety of industries. ⑤CCUS can also create jobs and profits from what was previously only a waste material by creating a larger economy around carbon.

VII ①For CCUS to succeed, the federal government must kick in funding for basic research and development and offer incentives such as tax breaks for carbon polluters who adopt the technology. ②The Trump administration has repeatedly tried to slash energy technology R&D, with the Department of Energy's CCUS R&D cut by as much as 76 percent in proposed budgets. ③But this funding must be protected.

【词汇短语】

1.withdraw /w?e'dr??/ v. 撤退;收回

2.make up ground 追上;赶上

3.*smokestack /'sm??kst?k/ n. 烟囱,烟窗

4.suspect /?s?spekt/ n. 嫌疑人

5.hydropower /'ha?dr?pa??/ n. 水力发电

6.utilization /,ju?t?la?'ze???n/ n. 利用;使用

7.*cohort /'k??h??t/ n. 一群;队

https://www.wendangku.net/doc/e710496877.html,tch onto 紧抓

9.start-up 初创企业

10.*Celsius /'sels??s/ n. 摄氏度

11.*Fahrenheit /'f?r?n'ha?t/ n. 华氏温度

12.decarbonize /di?'kɑ?b?na?z/ v. 脱去…的碳

13.avenue /'?v?nu/ n. 途径;手段

14.kick in 开始生效

15.*slash /sl??/ v. 大幅度裁减或削减(注:标*号为超纲词)

【翻译点评】

I ①The conclusion of the Paris Agreement in 2015, in which almost every nation committed to reduce their carbon emissions, was supposed to be a turning point in the fight against climate change. ②But many countries have already fallen behind their goals, and the U.S. has now announced it will withdraw from the agreement. ③Meanwhile emissions worldwide continue to rise. 翻译:2015年通过的《巴黎协定》中,几乎每个国家都承诺减少碳排放,这本应成为应对气候变化的一个转折点。但许多国家早已落后于目标,美国现在宣布将退出协定。与此同时,全球温室气体排放持续上升。点评:段I引出话题——《巴黎协定》的排碳目标VS黯淡的排碳现实。①《巴黎协定》本应成为气候变化的转折点。②③转折(But)指出目前黯淡的排碳现实。

II ①The only way to make up ground is to aggressively pursue an approach that takes advantag e of every possible strategy to reduce emissions. ②The usual suspects, such as wind and solar energy and hydropower, are part of this effort, but it must also include investing heavily in carbon capture, utilization and storage (CCUS)—a cohort of technologies that pull carbon dioxide from smokestacks, or even from the air, and convert it into useful materials or store it underground. 翻译:赶上目标的唯一途径是积极采取一种方法,利用一切可能策略减少排放。常规途径,如风能、太阳能和水力发电,是这一努力

的一部分,但还必须要大举投资碳捕获、利用和储存(CCUS)——一组能够把二氧化碳从烟囱、甚至空气中提取出来,然后转换为有用材料或储存于地下的技术。点评:段II提出解决之道——常规途径和CCUS并行。①总述赶上目标的途径是减少碳排放。②具体说明解决之道:常规途径与CCUS并行。

III ①Although CCUS has been opposed as too expensive and unproved, recent gains have made it far more effective. ②Improvements such as chemical compounds that are more efficient at latching onto carbon could drive the cost down from $100 per ton of captured carbon in 2016 to $20 per ton by 2025, according to a 2016 article in Science. ③Start-ups are also developing new tactics, among them the transformation of trapped carbon into fertilizer, which could spur further savings. 翻译:尽管有人反对CCUS过于昂贵且未经证实,但最新进展已经使其更加有效。根据《科学》杂志2016年的一篇文章,一些改进,就可以在2025年之前把碳捕获成本从2016年的每吨100美元降至每吨20美元,比如能够更有效地吸附碳的化合物。初创企业也在开发新的策略,其中包括将捕获的碳转化为肥料,这可能会进一步刺激储蓄。点评:段III指出CCUS的最新进展。①总述CCUS已经取得有效进展。②③具体介绍CCUS的最新进展及其效用。

IV ①Without CCUS, the level of cuts needed to keep global warming to two degrees Celsius (3.6 degrees Fahrenheit)—the upper limit allowed in the Paris Agreement—probably cannot be achieved, according to the International Energy Agency. ②By 2050 carbon capt ure and storage must provide at least 13 percent of the reductions needed to keep warming in check, the agency calculates. 翻译:根据国际能源署,没有CCUS, 将全球变暖控制在2摄氏度(3.6华氏度)的减排幅度——《巴黎协定》允许的上限——可能无法实现。根据该机构的计算,到2050年,碳捕获和碳储存必须提供至少13%的减排量,以控制全球变暖。点评:段IV指出CCUS的必要性。①指出没有CCUS,减排计划就无法实现。②说明CCUS应提供的减排量。

V ①CCUS technologies can also help decarbonize emissions in heavy industry—including production of cement, refined metals and chemicals—

which accounts for almost a quarter of U.S. emissions. ②In addition, direct carbon-removal technology—which captures and converts carbon dioxide from the air rather than from a smokestack—can offset emissions from industries that cannot readily implement other clean technology, such as agriculture. 翻译:CCUS技术还可以帮助脱去重工业排放中的碳——包括水泥、精炼金属、化学品生产行业——这占据了美国几乎四分之一碳排放。此外,直接除碳技术——从空气而不是烟囱中捕捉、转换二氧化碳——可以抵消那些无法轻易实施其他清洁技术的行业的碳排放,比如农业。点评:段V指出CCUS 的益处。①CCUS可以脱去重工业排放中的碳。②CCUS可以抵消农业等无法实施清洁技术行业的碳排放。VI ①The basic idea of carbon capture has faced a lot of opposition. ②Skepticism has come from climate deniers, who see it as a waste of money, and from passionate supporters of climate action, who fear that it would be used to justify continued reliance on fossil fuels.

③Both groups are ignoring the recent advances and the opportunity they present. ④By limiting invest ment in decarbonization, the world will miss a major avenue for reducing emissions both in the electricity sector and in a variety of industries. ⑤CCUS can also create jobs and profits from what was previously only a waste material by creating a larger economy around carbon. 翻译:碳捕获的基本思想已面临诸多反对。怀疑主要来自气候变化否认者,这些人认为碳捕获是在浪费资金,以及气候行动的热情支持者,这些人害怕碳捕获会成为继续依赖化石燃料的理由。这两类人都忽视了CCUS的最新进展和带来的机会。通过限制对脱碳的投资,世界将错失一个在电力部门和各行业减少碳排放的主要途径。CCUS还可以通过创造一个更大的碳经济体来创造就业机会,并从以前仅是废弃物的材料中获利。点评:段VI 介绍CCUS面临的反对之声及作者的反驳。①②介绍CCUS反对者的观点。

③④⑤作者对反对者观点进行反驳。

VII ①For CCUS to succeed, the federal government must kick in funding for basic research and development and offer incentives such as tax breaks for carbon polluters who adopt the technology. ②The Trump administration has repeatedly tried to slash energy technology R&D, with the Department of

Energy's CCUS R&D cut by as much as 76 percent in proposed budgets. ③But this funding must be protected. 翻译:CCUS 想要成功,联邦政府必须开始资助基础研究与开发,提供激励措施,比如给那些采用CCUS技术的碳污染者减税。特朗普政府已经多次试图削减能源技术研发方面的投资,美国能源部CCUS研发预算削减已高达76%。但这笔经费必须得到保护。点评:段VII提出建议——资助CCUS研发,鼓励企业采用CCUS技术。①②③对政府提出建议:应资助CCUS研发,对采用CCUS者减税,保障CCUS的研发经费。

气候变化对海洋生态环境的影响

气候变化对海洋动物的影响 摘要:本文根据气候变化对海洋的影响,分析海洋动物的生活环境的变化。并针对国内外有关气候变化对鲑鳟鱼类和栖息地及相关生物学影响的研究情况, 先从从栖息地环境方面阐述了气候变化对水生生物的影响,又从温度,二氧化碳浓度,降雨量及酸雨的增加,紫外线辐射增强和鱼病的传播等方面探讨气候变化对鲑鳟鱼类和生物学方面的影响 关键词:气候变化鲑鳟鱼类影响生物多样性海洋生物 全球变化对人类影响最大的是气候变化和生物多样性变化,因此1992年联合国环境与发展会议就这两个领域形成国际公约.气候变化和生物多样性变化存在密切的相互作用,该问题已经成为全球变化研究的焦点问题,并成为国际政治关注的新热点和GEF等国际资助的重点领域。尽管气候变化和生物多样性变化的相互作用极其复杂,但我国学者已经开展了许多研究工作.不过,中国在生物多样性应对气候变化的研究刚刚起步,任务还十分艰巨。海洋生物多样性是全球生物多样性的重要组成部分,如海洋动物门类达35个门,远高于陆地的11个动物门类。因此,研究气候变化对海洋生物多样性影响对于保护全球生物多样性具有重要意义。 1.气候变化主要生态因子对海洋生物多样性的影响气候变化引起的海洋表层温度、CO2浓度和海平面的上升、降雨量变化和海洋水文结构变化以及紫外线辐射增强等是对海洋生物多样性影响最为重要的生态因子 1.1温度升高对海洋生物多样性的影响 IPCC的气候变化报告指出,地球表面平均温度自1861年以来升高了0.6度.目前全球温度处于继续上升时期,预测到2100年,全球温度将比1990年升高1.4~5. .研究表明,如果全球平均温度升高 2.0~ 3.0度,20%~30%的动植物将面临灭绝的高风险;如果温度上升 4.0以上,将导致大量生物死亡和整个地球系统紊乱.中国近百年的气候也发生了明显变化.根据预测,与2000年相比,2020年中国年平均气温将升高1.3~2.1度,2050年将升高2.3~3.3度.其中温度升高的幅度由南向北递增,西北和东北地区温度上升明显.我国近海海洋表层温度也正在不断上升,其中20世纪80年代以后增暖明显,90年代至今最暖.根据国家海洋信息中心提供的数据,厦门海域1965~1990年期间水温上升了0.20;1960 ~2003年华南近海海洋表层温度年平均线性增长率为0.012~0.019.

新高考英语时文阅读高三专版(含答案解析及全文翻译)

新高考英语时文阅读高三专版(含答案解析及全文翻译) A The life of FM-2030, a transhumanist (超人文主义者) who believed humans will be able to end natural death in the future using technology, is explored in a new documentary. The film, titled‘2030’, was released late last month and is available across multiple streaming platforms. It was made by British filmmaker Johnny Boston who interviewed a range of FM-2030’s acquaintances and scientific experts. Transhumanists believe humans can and should use emerging future technology to greatly enhance their natural abilities. These technologies could include robotics, AI, gene therapy preventing the ageing process. This could radically change what it means to be a member of our species. FM-2030 was born in Brussels in 1930 named Fereidoun M. Esfandiary. The son of an Iranian diplomat, he later changed his legal name to mark his belief that by 2030 we will be ageless and everyone will have an excellent chance to live forever. FM-2030 wrote a number of books around life extension and transhumanist topics, and is widely regarded as one of the founding fathers of the modern transhumanist movement. After his death in 2000, FM-2030’s body was placed in cryonic suspension in Arizona. Mr Boston commented: “I met FM-2030 and that was his legal name when I was about 11 or 12 years old. He’d come to London with his partner at the time and they stayed with us. This was in the early 80s when he had these really off the wall ideas that we were going to live on indefinitely and that there was going to be a much more progressive politics. He talked about we were going to communicate brain to brain. There was going to be a machine that you could put in various characteristics and it was going to print stuff.” Mr Boston went on to produce a number of videos outlining FM-2030’s ideas. He did a series of films called the future of democracy that came out of talks that FM had done. He said,“FM really talks about what the future holds in terms of how we govern ourselves. He thinks we’ve got to useAI.” 1. What will happen in the future according to transhumanists? A. Humans will die in a natural state. B. Humans’life span will remain limited. C. Humans will not need language any longer. D. Humans’abilities will be largely improved by technologies. 2. Why did Fereidoun M. Esfandiary change his name to FM-2030? A. Because his father forced him to do so. B. Because he didn’t like his former name at all. C. Because he wanted to flag his transhumanist faith. D. Because he thought human would end natural death in 2030. 3. What does the underlined phrase “off the wall”in Paragraph 5 mean? A. Dull. B.Ambiguous. C. Ridiculous. D. Upset. 4. Which can be the best title for the passage? A. The Uncertain Future. B. The Film Called 2030. C. The Ideas of Transhumanists.

新高考赢在阅读高二英语时文阅读专版(含原文翻译及答案解析)

新高考赢在阅读高二英语时文阅读专版(含原文翻译及答案解析) A Josh Gad's Olaf showed insanely hot skills singing "Unmeltable Me" for "Frozen II". But the hilarious (欢闹的) tune never made it into the animated hit: It was cut from the movie after his vocals were recorded and storyboards had been drawn up. The missing: “Unmeltable Me”is revealed now at https://www.wendangku.net/doc/e710496877.html,, ahead of the home release of “Frozen II”, which features the deleted scene as an extra. The ditty was the first song written for the sequel. The new song features Gad's Olaf singing style, playing harpsichord (羽管键琴) accompaniment. The instrument was requested by directors for comedic reasons. The harpsichord arrangement made it funny and different. The filmmakers originally wanted “Unmeltable Me”to explain an important story point –why Olaf no longer needed the magical “flurry”cloud Elsa had created at the end of "Frozen" to keep the snowman from melting in warm weather. Creating the flurry effect was so difficult for the animators that the directors decided Elsa would have perfected a permafrost coating for Olaf by the second movie. The scene features Olaf doing just about everything to show off his new permafrost coating, from sticking a lit candle into his head to placing his head in a Sterno-heated buffet tray. Olaf's audience in the scene is a group of dignitaries who have traveled to Arendelle from around the world to meet the powerful Elsa at a state dinner. Elsa and Anna are held up, so Olaf fills time entertaining the assembled guests with the song. Sadly, “Unmeltable Me”was cut before it could be fully animated. Gad’s Olaf still received his big song in “Frozen 2”singing “When IAm Older”happily.“Unmeltable Me' is definitely fun, but that’s show business,”says Lopez, who especially loves how Olaf ends the song on an unusual high note. 1. What can we learn from the song “Unmeltable Me”in the first paragraph? A. The song “Unmeltable Me”was sung by Elsa. B. The song can make this movie into a animated hit. C. The song was created for the movie. D. The song was recorded in the movie at last. 2. What does the underlined word “revealed”in Paragraph 1 probably mean? A. Show. B. Hide. C. Create. D. Delete. 3. What is the purpose of using permafrost coating? A. To entertain the audience. B. To prevent Olaf from melting. C. To make the movie funny. D. To explain show business. 4. What can we know from the passage? A. This movie is directed by Josh Gad. B. Olaf likes his new permafrost coating. C. Josh Gad’s attitude is passive because his song was cut from the movie. D. The scene of the song is not mentioned in the article. B Google’s Search Engine Can Recommend Your Favorite Shows and Movies

气候变化对农业的影响及应对措施

气候变化对农业的影响及应对措施 周曙东周文魁朱红根王传星王艳 摘要: 阐述气候变化的特点, 分析农作物对温度、降水变化的敏感性, 昆虫对温度变化的敏感性。探讨了农业生产对低温雨雪冰冻天气、对干旱及洪涝灾害的脆弱性。应对气候变化的农业技术选择包括选育抗逆性强的农作物新品种, 增强农作物抵御自然灾害的能力; 加强农业水利基础设施建设; 大力发展节水农业种植技术; 加强农业灾害性天气的预警与响应能力建设。在此基础上提出应对气候变化的农业适应性政策措施: 调整耕作制度, 提高指数; 完善江河湖泊防洪工程和防洪减灾体系; 加强土地合理利用; 发展设施农业, 提高农业抗御自然灾害的能力; 制订减灾应急预案; 积极推广农业保险。 关键词: 气候变化; 敏感性; 脆弱性 一、引言 气候变化被列为全球十大环境问题之一, 随着全球气候变化研究的进展, 开展气候变化影响的相关研究开始成为学术界最为活跃的研究领域之一。农业是对天气变化最为敏感的部门之一, 因为气候始终是影响农业生产的重要决定因素, 到目前为止, 农业还没有改变靠天吃饭的局面。农业是国民经济的基础, 气候变化对农业所带来的不利影响,特别是极端天气气候事件诱发的自然灾害将造成农业生产的波动、危及粮食安全、社会的稳定和经济的可持续发展。 尽管在哥本哈根会议上各国还没有就气候变化问题综合治理所采取的措施达成共识, 有待在2010年墨西哥城的第16 次缔约方会议上继续协商, 但气候变化会带来难以估量的损失, 气候变化会使人类付出巨额代价的观念已为世界所广泛接受, 并成为广泛关注和研究的全球性环境问题。及早开展气候变化对农业影响的研究, 发现可能存在的问题, 提前采取适应性对策具有极其重要的战略意义。本文从敏感性、脆弱性方面来分析气候变化对农业的影响, 并在此基础上探讨我国农业应对气候变化的适应性对策。 二、气候变化的特点和趋势 气候变化是气候平均状态出现统计意义上的显著变化或者持续较长一段时间( 10 年或更长时间)的变动, 具体指气候平均值和离差值两者中的一个或两者同时随时间出现了统计意义上的显著变化。

中国应对气候变化国家方案

《中国应对气候变化国家方案》阅览 中国作为一个负责人的发展中国家,制定的《中国应对气候变化国家方案》,明确了到2010年中国应对气候变化的目标、基本准则、重点领域及其政策措施。中国将努力建设资源节约型、环境友好型社会,为保护全球气候继续做出贡献。 应对气候变化的总目标 中国应对气候变化的总目标是:控制温室气体排放取得明显成效,适应气候变化的能力不断增强,气候变化相关的科技与研究水平取得新的进展,公众的气候变化意识得到较大提高,气候变化领域的机构和体制建设得到进一步加强。 应对气候变化的基本原则 中国作为最大的发展中国家,在应对气候变化的问题上,坚持正可持续发展的框架下应对气候变化的原则;遵循《气候公约》规定的“共同但有区别的责任”原则;减缓与适应并重的原则;将应对气候变化的政策与其他相关政策有机结合的原则;依靠科技进步和科技创新的原则;积极参与、广泛合作的原则。 面临的困难与挑战 (一)对中国现有发展模式提出了重大的挑战。未来随着中国经济的发展,能源消费和二氧化碳排放量必然还要持续增长,减缓温室气体排放将使中国面临开创新型的、可持续发展模式的挑战。 (二)对中国以煤为主的能源结构提出了巨大的挑战。以煤为主的能源资源和消费结构在未来相当长的一段时间将不会发生根本性的改变,使得中国在降低单位能源的二氧化碳的排放强度方面比其他国家面临更大的困难。 (三)对中国能源技术自主创新提出了严峻的挑战。中国目前正在进行大规模能源、交通、建筑等基础设施建设,如果不能及时获得先进的、有益于减缓温室气体排放的技术,则这些设施的高排放特征就在会未来几十年内存在。 (四)对中国森林资源保护和发展提出了诸多挑战。中国生态环境脆弱,现有可供植树造林的土地多集中在荒漠化、石漠化以及自然条件较差的地区,给植树造林和生态恢复带来巨大的挑战。 (五)对中国农业领域适应气候变化提出了长期的挑战。如何在气候变化的情况下,合理调整农业生产布局和结构,改善农业生产条件,确保中国农业生产持续稳定发展,对中国农业领域提高气候变化适应能力和抵御气候灾害能力提出了长期的挑战。

新高考高一英语时文阅读精编(含答案解析)

新高考高一英语时文阅读精编(含答案解析) A Coronavirus (冠状病毒) has infected more than 170,000 people across the world, and the virus is expected to peak in the UK in the coming weeks. Professor Chris Whitty said on March 12 that he expects the UK would reach the peak of its coronavirus outbreak in about 10 to 14 weeks. The NHS is currently advising you to self-isolate for seven days if you have symptoms of coronavirus, like a high temperature, or a new continuous cough. If you have travelled to a badly affected area, or have been in contact with someone with the disease, you will also need to self-isolate. Staying at home will help to control the spread of the virus. When you self-isolate, you need to stay away from public places. This means you cannot take your pets out for walks in public places. With more time indoors, it’s also a good idea to plan how you can keep your pet occupied while self-isolating. If you’ve been diagnosed with coronavirus, you should inform your local health protection team that there is a pet in the household. They will touch with the relevant animal health authorities. If your pet shows signs of ill health, please do not take them to the vet. Contact your local health protection team for advice. The RSPCA have also issued tips for keeping your pets and family safe while self-isolating. If you haven’t tested positive or been asked to self-isolate then continue to interact with your pets as normal but adopt good hygiene (卫生) practices including washing hands thoroughly with soap and water before and after touching them, their food, toys and bedding. Avoid being kissed or licked and sharing food with your pet. Ensure you have extra supplies of pet food and medication in case of self-isolation. Speak to your vet or doctor for more advice. 1. Which situation does not require self-isolation during the coronavirus? A. Being bitten by pet animals. B. Arriving in an affected area. C. Contacting with confirmed case. D. Having a fever for a few days. 2. If you are a patient with coronavirus, what might happen to your pet according to Para. 3? A. Being taken to the vet. B. Being given to friends. C. Staying with you.

全球气候变暖的原因和应对措施

全球气候变暖的原因和应对措施 全球气候变暖已经成为世界上的重大问题之一。那么是什么造成的,如何应对呢?以下是小编整理的关于全球气候变暖的相关内容,欢迎阅读和参考! 全球气候变暖的原因和应对措施 自西方工业化以来,世界人口在 (1)人口剧增因素:近年来人口急剧地增长,人类在日益强大的大规的剧增是导致全球变暖的主要因素之模生产和经济活动中,大量开垦耕地、一。同时,这也严重地威胁着自然生掠夺与毁坏森林资源,大量地燃烧化态环境间的平衡。这样多的人口,每工原料,释放了大量的温室气体,致年仅自身排放的二氧化碳就将是一惊使大气成分发生变化,导致了全球气人的数字,其结果就将直接导致大气候日趋变暖。中二氧化碳的含量不断地增加,这样 全球变暖将给地球和人类带来复形成的二氧化碳“温室效应”将直接影杂的潜在的影响,既有正面的,也有响着地球表面气候变化。 负面的。例如随着温度的升高,副极(2)大气环境污染因素:目前,地地区也许将更适合人类居住;在适环境污染的日趋严重已构成一个全球当的条件下,较高的二氧化碳浓度能性重大问题,同时也是导致全球变暖够促进光合作用,从而使植物具有更的主要因素之一。现在,关于全球气高的

固碳速率,导致植物生长的增候变化的研究已经明确指出了自上个加,即二氧化碳的增产效应,这是全世纪末起地球表面的温度就已经开始球变暖的正面影响。但是与正面影响上升。 相比,全球变暖对人类活动的负面影(3)海洋生态环境恶化因素:目响将更为巨大和深远。今年8月份前,海平面的变化是呈不断地上升趋CCTV报道,由于气候变暖的影响,势,根据有关专家的预测到下个世纪珠穆朗玛峰的顶峰下降了米。祁中叶,海平面可能升高50cm。如不采连山冰川缩减危及河西走廊:近年来,取及对措施,将直接导致淡水资源的祁连山冰川融化比上个世纪70年代减破坏和污染等不良后果。另外,陆地少了大约10亿立方米,冰川局部地区活动场所产生的大量有毒性化学废料的雪线正以年均米的速度上升。和固体废物等不断地排入海洋;发生专家分析,冰川退缩,雪线上升除自在海水中的重大泄(漏)油事件等以及然气候因素外,另一个主要原因是人由人类活动而引发的沿海地区生态环口膨胀,超载超牧,过度开垦,乱砍境的破坏等都是导致海水生态环境遭 破坏的主要因素。 滥伐,滥采地下水有关。 (4)土地遭侵蚀、沙化等破坏因 素。造成土壤侵蚀和沙漠化的主要原因是不适当的农业

中国科学院“应对气候变化国际谈判的关键科学问题”项目群简介

中国科学院“应对气候变化国际谈判的关键科学问题”项目群简介 单位:中国科学院北京100864 作者:丁仲礼傅伯杰韩兴国葛全胜 目前,国际上十分流行的全球气候变暖理论由3个主要环节组成:(1)大气CO2浓度从工业革命前的280ppmv升至450—550ppmv后,全球平均气温可能将上升2℃—3℃;(2)若全球平均气温上升2℃以上,将可能给人类带来重大影响,突出地表现为海平面上升、物种灭绝、极端天气事件频率增加、热带传染病北上、全球粮食短缺、水资源供应不足,地区冲突增加等;(3)世界各主要国家必须立即采取各种行动,减缓全球变暖,使2050年CO2排放量降低到1990年排放水平的50%,且越早采取行动损失越小[1,2]。显然,这个理论的核心基础是气温对大气CO2浓度的高度敏感性,以及地球表层系统在适应气温变化时的极度脆弱性,其最终目的是减少或控制化石能源的使用量。积20余年之努力,这个理论已经走出学术界,被社会公众广泛接受和传播,同时也成为一部分政治家在国际政治、外交博弈中使用的工具。 但是,学术界对这个理论质疑的声音从来就没有中断过。大气CO2浓度增加1倍后,全球平均气温将上升2℃—3℃,这只是一个模拟值,它由不同的数值模式计算后平均得出,且不同模式输出的增温值可差5℃之多(从1℃左右到6℃以上)。这就提出一个问题:数值模式是否已成熟到能够准确评价全球平均气温与大气CO2浓度的关系?工业革命以来,全球气温已增加约0.74℃,大气CO2当量浓度已增加60%左右,那么,从过去100多年的记录中,我们是否可以准确评价气温对CO2的敏感性?如果这个评价同数值模拟不一致,则哪种方法更可靠?气候系统是一个高度复杂的系统,人类对它在不同时间和空间尺度上的变化过程与机制是否已有足够充分的了解?比如,在一些要素的“驱动”下,气候系统也会产生负反馈作用,目前的文献谈了很多正反馈过程,那么科学界对其负反馈过程了解充分吗?围绕南极冰芯所发表的大量文章表明CO2浓度滞后于气温的变化[3-5],这说明,CO2“驱动”气温升高不是简单的线性关系。减少CO2排放必须降低化石能源的使用,而根据一些专业机构的预测,人类在今后20—30年间,还将以化石能源为主,这就面临一个如何在扶贫、发展和保护气候中达到平衡的问题,简言之,如果气温对CO2浓度没有那么敏感,人类值得去为之牺牲发展速度吗? 同样,对增温的影响也有很多不确定性。地质学的研究告诉我们,在地球几十亿年的历史上,绝大部分时期比目前温暖得多,比如距今5 000万年左右的始新世,气温至少比目前高10℃;在新生代,全球气温整体变化趋势是降温,如在3 600万年前后,东南极首次出现冰盖;到1 400万年前后,西南极出现冰盖,东南极冰盖扩张;在260万年前后,格陵兰出现冰盖,自此之后,地球反复地经历冰期-间冰期气候振荡,其温度变化幅度可达6℃—8℃[5-7]。也就是说,过去的气候变化无论在幅度还是在速率上,均比过去100年“温室效应期”及今后一段时期内可能会经历的“增暖期”要大得多。那么,为何在有人类活动以后,地球气候系统、生态系统等会变得如此脆弱了呢?又比如,地质学的常识告诉我们,由于温度对全球水循环的控制作用,地球历史上的暖期往往是湿润期,其生物多样性、生物总产率均显著高于寒冷期。那么,为何在今后的增温期会导致粮食减产、水资源不足呢?同样,温暖期的一个突出现象是地球从赤道到极地的温度梯度减小,整个大气环流趋向稳定,为何未来的增温反而会导致极端天气频率增加呢?地球的温度一直在变,变是绝对的,不变是相对的。那么,

气候变化对海洋生态的影响

海洋气象灾害 摘要:全球气候变化深刻影响着人类的生存和发展,是世界各国面临的重大挑战。无论是依靠自然气候的农业活动或者工业迅速发展中的工业革命,还是步入21世纪的信息科技革命。气候都在其中扮演着重要的角色,因此有必要对气候变化对人类的生活生产的影响进行探索。合理的利用气候,在农业上根据当地的典型气候选择合适的农作物因地制宜,在航海上对变化的气候进行预测减小台风、海啸造成的损失。我国地域广阔,人口众多。季风气候显著、气候的大陆性强,呈现多种的气候类型。对此我想分析气候对海洋生态的影响。海南岛是我国南海上的一颗璀璨的明珠,是仅次于台湾的全国第2大岛。是我国陆地面积最小、海洋面积最大的省。有着中国最丰富的海洋资源。有人说21世纪的经济已经不再是陆地经济而是步入了海洋经济。海洋是以广阔的海洋为地域空间,以海洋自然资源为利用对象、海洋产业为主体的经济模式。所以基于这个基础的实情,我们很有必须要探索海洋气候灾害的影响。减小海洋气象灾害带来的经济损失。 关键词:气候变化; 海洋气象; 气象灾害; 海洋资源; 台风风暴潮 据世界气象组织统计,全球气象灾害占自然灾害的86%。我国地域辽阔,东部处于东亚季风区,西部地处内陆,地形地貌多样,加之青藏高原大地形的作用,影响我国的天气和气候系统,我国成为世界上受气象灾害影响最为严重的国家之一。近几年来,尤其是我国东部沿海地区受到台风、海啸、海蚀等海洋性气候灾害影响日益严重。海洋气象灾害制约着我国东部经济的发展,所以我们有必要对海洋气象灾害进行预测。海洋气象灾害是缘于海洋的自然灾害,是海洋自然环境或者气象要素之间发生异常和激烈的变化所引起的。常见的海洋气象灾害包括于8月12日20时在浙江省温岭县石塘镇登陆的“云娜”台风、2011年登陆于日本本州岛的地震海啸、于7月4日~5日在北部湾海面形成6米~7米的热带风暴“桃芝”台风浪。海南省位于中国的南海区域盛行偏东风,属于热带季风海洋性气候。基本特征为:四季不分明,夏无酷热,冬无严寒,气温年较差小,年平均气温高;干季、雨季明显,冬春干旱,夏秋多雨,多热带气旋;光、热、水资源丰富,风、旱、寒等气候灾害频繁。年平均气温较为稳定,年降水量极其丰沛(西部沿海约

新高考英语时文阅读高三专版特训(含答案解析及原文翻译)

新高考英语时文阅读高三专版特训(含答案解析及原文翻译) A The life of FM-2030, a transhumanist (超人文主义者) who believed humans will be able to end natural death in the future using technology, is explored in a new documentary. The film, titled ‘2030’, was released late last month and is available across multiple streaming platforms. It was made by British filmmaker Johnny Boston who interviewed a range of FM-2030’s acquaintances and scientific experts. Transhumanists believe humans can and should use emerging future technology to greatly enhance their natural abilities. These technologies could include robotics, AI, gene therapy preventing the ageing process. This could radically change what it means to be a member of our species. FM-2030 was born in Brussels in 1930 named Fereidoun M. Esfandiary. The son of an Iranian diplomat, he later changed his legal name to mark his belief that by 2030 we will be ageless and everyone will have an excellent chance to live forever. FM-2030 wrote a number of books around life extension and transhumanist topics, and is widely regarded as one of the founding fathers of the modern transhumanist movement. After his death in 2000, FM-2030’s body was placed in cryonic suspension in Arizona. Mr Boston commented: “I met FM-2030 and that was his legal name when I was about 11 or 12 years old. He’d come to London with his partner at the time and they stayed with us. This was in the early 80s when he had these really off the wall ideas that we were going to live on indefinitely and that there was going to be a much more progressive politics. He talked about we were going to communicate brain to brain. There was going to be a machine that you could put in various characteristics and it was going to print stuff.” Mr Boston went on to produce a number of videos outlining FM-2030’s ideas. He did a series of films called the future of democracy that came out of talks that FM had done. He said,“FM really talks about what the future holds in terms of how we govern ourselves. He thinks we’ve got to useAI.” 1. What will happen in the future according to transhumanists? A. Humans will die in a natural state. B. Humans’life span will remain limited. C. Humans will not need language any longer. D. Humans’abilities will be largely improved by technologies. 2. Why did Fereidoun M. Esfandiary change his name to FM-2030? A. Because his father forced him to do so. B. Because he didn’t like his former name at all. C. Because he wanted to flag his transhumanist faith. D. Because he thought human would end natural death in 2030. 3. What does the underlined phrase “off the wall”in Paragraph 5 mean? A. Dull. B.Ambiguous. C. Ridiculous. D. Upset. 4. Which can be the best title for the passage? A. The Uncertain Future. B. The Film Called 2030. C. The Ideas of Transhumanists.

高中地理 应对气候变化的措施

应对气候变化的措施 高考频度:★★☆☆☆难易程度:★★☆☆☆ 典例在线 读全球气温变化图,回答1—2题。 根据陆地和海洋观测资料绘制的全球地面气温距平演变趋势 1.下列词语中形容图中气温变化最恰当的是 A.保温作用B.温室效应 C.热岛效应D.全球气候变暖 2.下列做法中对缓解图示所反映的环境问题最有效的是 A.积极研制新型的制冷系统,以减少并逐步禁止氟氯烃等物质的排放 B.发展洁净煤技术,研究煤炭中硫资源的综合开发与利用 C.沿海国家修建沿海大堤,防止沿海地区被淹 D.提高能源利用效率,采用新能源,减少二氧化碳气体的排放量 答案 【答案】1.D 2.D 【解析】1.图中反映的是全球地面气温距平演变趋势,图中气温距平总的趋势是波动上升,说明气温变化的趋势是全球气候变暖。故本题选D。 解题必备 应对气候变化的措施

应对气候变化有技术措施、管理措施,还有生物措施和工程措施。主要包括三方面内容:控制温室气体的排放、加强对温室气体的吸收能力和采取适应气候变化的措施。 对策具体措施 控制温室气体的排放 (1)多使用清洁能源 (2)提高能源利用率 (3)避免浪费,减少废弃物排放,尽可能使用公共交通工具加强对温室气体的吸收能力 (1)植树种草 (2)采用固碳技术 (3)防止森林火灾 采取适应气候变化的措施 (1)培育新的农作物品种 (2)调整农业生产结构 (3)沿海地区建设海岸堤坝 学霸推荐 读全球可能发生的某种环境迁移示意图,完成1—2题。 1.导致该“环境迁移”的原因可能是 A.地震B.滑坡 C.全球变暖D.台风 2.以下措施对该环境问题防治有明显效果的是 A.对建筑物进行加固B.调整能源消费结构 C.将人口全部迁出D.退耕还湖还湿 答案 【答案】1.C 2.B

新高考高一英语时文阅读专版特训(含中文翻译及答案解析)

新高考高一英语时文阅读专版特训(含中文翻译及答案解析) A Laila Anderson was just nine years old when hospital visits became a part of her everyday life. She would regularly get headaches, vomit and become unresponsive. One day, she collapsed while getting out of the car. After 16 months of testing and two misdiagnoses, Anderson learned she had Isolated Central Nervous System HLH, an extremely rare autoimmune disease that results in her body making too many immune cells. Those immune cells were attacking her brain. According to Jeff Bednarski, MD, PhD, a Washington University hematologist (血液学家) at St. Louis Children’s Hospital, Laila is just one of 15 children in the world who have demonstrated neurologic symptoms of the disease, which made it even more challenging to pinpoint a diagnosis. On October 16th, 2018, a central line was put in her chest, and she began chemotherapy (化疗). She needed 10 weeks of chemotherapy to prepare for her only hope for a cure: a bone marrow transplant. Then, all they could do was wait for a match. Only three months later, Felmlee received a call from Be The Match; he was the best match for a 10-year-old girl. That was all he knew about her at the time. Nearly 300 miles away in Lawrence, Kansas, 18-year-old Kenton Felmlee joined the registry after hearing his teacher speaking about her own experience as a donor during class. When asked if he was still willing to donate, it was no decision. He immediately said yes. January 24th became Anderson’s “new birthday”once Felmlee's bone marrow was transplanted in her. After the transplant, she spent one month in isolation to prevent infection. Several months later, Anderson rang the bell signaling the end of treatment. “Now I am like any other kid. I'm a sixth grader. I go to school five days a week. I have blood work once a month just to see how my counts are, how my bone marrow was accepting,”says Anderson. Prior to deciding to meet in person, Felmlee and Anderson’s family exchanged letters. Even though they didn't know each other yet, they already felt bonded. 1.What’s the real reason that made LailaAnderson often go to hospital? A. Her headaches. B. Her vomiting. C. Her collapses. D. Her disease. 2. Why was it difficult for doctors to give Laila Anderson a right diagnosis at first? A. Because Laila Anderson was too young to diagnose. B. Because the family didn't take her to hospital in time. C. Because there were another 15 children to be diagnosed. D. Because the symptoms of her disease didn't seem obvious. 3. Who inspired Felmlee to donate a bone marrow to others? A. His parents. B. His classmates. C. His teacher. D.Anderson. 4. What will probably happen next between Felmlee and Laila? A. They will meet each other in person. B. They will keep exchanging letters. C. They will live together afterwards. D. They will become family members. B Did JK Rowling just tease it’s finally happening? The Harry Potter books may have ended over a decade ago, but the narrative has been continuing through a stage production.

相关文档
相关文档 最新文档