首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
When it comes to the environment, aviation has a rather dirty reputation. The industry produced 689 million tons of CO2 in 2012,
When it comes to the environment, aviation has a rather dirty reputation. The industry produced 689 million tons of CO2 in 2012,
admin
2020-12-14
61
问题
When it comes to the environment, aviation has a rather dirty reputation. The industry produced 689 million tons of CO
2
in 2012, according to Air Transport Action Group and this number is sure to grow as global demand for flight continues to skyrocket.
"Aviation will double in size worldwide in the next two decades, and if we’ re not able to provide a sustainable means to fly, we will create a ceiling for growth in the industry," says Ignaas Caryn, director of innovation at KLM Royal Dutch Airlines.
As a result, it looks like the aviation industry being ready to green up its game. In January, Boeing announced a new initiative to build a biofuel supply chain in the United Arab Emirates, as well as research it’s conducting into biofuels made from salt water-consuming desert plants.
To name just a few partnerships, the airplane manufacturer teamed with Virgin Australia Airlines is to produce sustainable aviation fuels from special trees in Australia. Airbus has also joined other aerospace companies in launching the ITASCA initiative, a collaborative project funded by the European Union to produce and test the use of sustainable jet fuel.
Frederic Eychenne, Airbus’ head of new energies, notes that no single crop will do the job for biofuels, and that to achieve true sustainability, biofuel—like food—is best when it’ s locally-sourced.
"Different countries grow different crops. They have different refineries in place. Sustainability isn’ t just about reducing emissions in the air. We have to consider the whole life-cycle in terms of production," he notes.
The main barrier to use biofuel on a larger scale, says Caryn, is the price. "Today, bio jet fuel is still three to four times more expensive than fossil fuel, because there’ s no continuous production. There’ s a demonstrated hole in the value chain," he notes.
To solve the problem, in 2010 KLM became a joint founder of SkyNRG—a major supplier of eco-efficient jet fuel.
"We believed the development of bio jet fuel was important, and that we couldn’t keep it within the boundaries of KLM, so we decided to come up with a new company. In the last five years, SkyNRG have supplied approximately 25 airlines," he says.
SkyNRG is also working with airlines and airports around the world to create bioports—or supply chains of sustainable jet fuel—in a bid to ultimately bring down the price.
"With an increase volume, we could see price parity within the next ten years," says Caryn.
According to Ignaas Caryn what will blocks aviation’ s development?
选项
A、Fierce competition within the industry.
B、Bad service.
C、Air pollution.
D、No sustainable aviation fuels.
答案
D
解析
细节题。本题考查的是阻碍航空业发展的瓶颈.可以定位到文中第二段“Aviation will double in size worldwide in the next two decades,and if we’re not able to provide a sustainable means to fly,we will create a ceiling for growth in the industry.”says Ignaas Caryn,director of innovation at KLM Royal Dutch Airlines,从这里可以看出主要问题是缺少可持续燃料,所以D项符合文章意思。因此,正确答案是D。
转载请注明原文地址:https://kaotiyun.com/show/SyP7777K
0
大学英语六级
相关试题推荐
Let’sallstopjudgingpeoplewhotalktothemselves.Newresearchsaysthatthosewhocan’tseemtokeeptheirinnermonologues
A、Rabbitsarenotablefortheircapacityofabundantproduction.B、Rabbitsarebornonlyinspring.C、Rabbitsarethesymbolof
A、Toengagepeopleinconversations.B、Towatchpeople’sbodylanguage.C、Toobservepeople’sfacialexpressions.D、Toseewheth
A、Collectashtreeseedsforexperiment.B、Preservethehealthyashtreeseeds.C、Setupanewseedbankforresearch.D、Develop
A、Toachieveastateofdeeprelaxationispossiblethroughvariousmeans.B、Sittinginanarmchaircanreflectone’scharacter.
Whatifwecouldreadthemindofaterrorist?ResearchersatNorthwesternUniversityinChicagosaytheyhavetakenastepclos
Whatifwecouldreadthemindofaterrorist?ResearchersatNorthwesternUniversityinChicagosaytheyhavetakenastepclos
A、Burythemlocally.B、Throwthemaway.C、Asklocalexpertstorecyclethem.D、Deliverthemtootherrecyclingcompanies.D
Peoplecannowavoidhavingtosortthroughalbumsfromseveraldifferentfriendswhentryingtoreliveparties,weddingsandot
Theestimatesofthenumbersofhome-schooledchildrenvarywidely.TheU.S.DepartmentofEducationestimatesthereare250,00
随机试题
肾脏移植患者应采取
钩藤入煎剂的正确方法是
不符合小儿呼吸系统生理特点的是()
整平经纬仪的目的是为了使()。
实现建设项目质量、进度和成本控制的关键是()。
下列关于保险金额和保险价值,正确的表述是()。
位于市区的某自营出口生产企业,2011年6月增值税应纳税额为-280万元,出口货物的“免抵退”税额为400万元;企业将其自行研发的动力节约技术转让给一家科技开发公司,获得转让收入80万元。下列各项中,符合税法相关规定的有()。
设函数f(x)在(一∞,+∞)内二阶可导,且f(x)和f"(x)在(一∞,+∞)内有界,证明:f’(x)在(一∞,+∞)内有界.
下列删除VLAN的命令中,无法执行的是()。
在窗体上画两个文本框Text1和Text2,一个命令按钮Command1,请阅读以下程序段:PrivateSubCommand1_Click()x=0DoUntilx>=50x=(x+4)*(x+3)n=n+1
最新回复
(
0
)