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By the end of the century，if not sooner，the world's oceans will be bluer and greener thanks to a warming climate，according to a new study. 根据一项新的研究，到本世纪末，如果没有更早的话，由于气候变暖，世界海洋将变得更蓝更绿。 At the heart of the phenomenon lie tiny marine microorganisms called phytoplankton. Because of the way light reflects off the organisms，these phytoplankton create colourful patterns at the ocean surface. Ocean colour varies from green to blue，depending on the type and concentration of phytoplankton. Climate change will fuel the growth of phytoplankton in some areas，while reducing it in other spots，leading to changes in the ocean's appearance. 这种现象的核心是被称为浮游植物的海洋微生物。由于光从生物体反射的方式，这些浮游植物在海洋表面形成了五颜六色的图案。海洋的颜色从绿色到蓝色不等，这取决于浮游植物的种类和浓度。气候变化将在某些地区助长浮游植物的生长，而在其他地区则会相反，这导致了海洋外观的变化。 Phytoplankton live at the ocean surface，where they pull carbon dioxide into the ocean while giving off oxygen. When these organisms die，they bury carbon in the deep ocean，an important process that helps to regulate the global climate. But phytoplankton are vulnerable to the ocean's warming trend. Warming changes key characteristics of the ocean and can affect phytoplankton growth，since they need not only sunlight and carbon dioxide to grow，but also nutrients. 浮游植物生活在海洋表面，在那里它们将二氧化碳吸入海洋，同时释放氧气。当这些生物死亡时，碳就会埋在深海中，这是一个有助于调节全球气候的重要过程。但浮游植物很容易受到海洋变暖趋势的影响。变暖改变了海洋的主要特征，并可能影响浮游植物的生长，因为它们的生长不仅需要阳光和二氧化碳，还需要营养物质。 Stephanie Dutkiewicz，a scientist in MIT's Center for Global Change Science，built a climate model that projects changes to the oceans throughout the century. In a world that warms up by 3℃，it found that multiple changes to the colour of the oceans would occur. The model projects that currently blue areas with little phytoplankton could become even bluer. But in some waters，such as those of the Arctic，a warming will make conditions riper for phytoplankton，and these areas will turn greener. “Not only are the quantities of phytoplankton in the ocean changing. ”she said，“but the type of phytoplankton is changing. ” 麻省理工学院全球变化科学中心的科学家斯蒂芬妮·杜特凯维奇建立了一个气候模型，预测整个世纪海洋的变化。在一个温度升高3℃的世界里，会发现海洋的颜色发生多重变化。该模型预测，目前几乎没有浮游植物的蓝色区域可能会变得更蓝。但在一些水域，如北极水域，变暖将使浮游植物生长条件更加成熟，这些地区将变得更加绿色。”不只是海洋中浮游植物的数量在变化，”她说，“浮游植物的种类也正在改变。”
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Want to explore new cultures，meet new people and do something worthwhile at the same time? You can do all the three with Global Development Association（GDA）. Whatever stage of life you're at，wherever you go and whatever project you do in GDA，you'll create positive changes in a poor and remote community. 想探索新的文化，认识新的人，同时做一些有价值的事情吗？全球发展协会（Global Development Association，GDA）满足这三点要求。无论你处于什么阶段，无论你去哪里，无论你在GDA做什么项目，你都可以在贫穷偏远的社区创造积极的变化. We work with volunteers of all ages and backgrounds. Most of our volunteers are aged 17-24. Now we need volunteer managers aged 25-75.They are extremely important in the safe and effective running of our programmes. We have such roles as project managers，mountain leaders，and communication officers. 我们与不同年龄和背景的志愿者合作，大部分志愿者年龄在17-24岁之间。现在我们需要25-75岁的志愿者管理人员，他们对我们计划的安全和有效运作极为重要。我们拥有者的角色包括项目经理、山地leader和沟通官员等。 Depending on which role you choose，you could help to increase a community's access to safe drinking water，or help to protect valuable local cultures. You might also design an adventure challenge to train young volunteers. 根据你选择的角色，你可以帮助社区获得安全饮用水，或者帮助保护有价值的当地文化。你也可以设计一个冒险挑战来训练年轻志愿者。 Not only will you help our young volunteers to develop personally，you'll also learn new skills and increase your cultural awareness. You may have chances to meet new people who'll become your lifelong friends. 你不仅可以帮助我们的年轻志愿者个人发展，你还会学到新的技能，提高你的文化意识。你有机会结识新朋友，他们将成为你一生的朋友。 This summer we have both 4-week and 7-week programmes： 今年夏天我们有4周和7周的项目： GDA ensures that volunteers work with community members and local project partners where our help is needed. All our projects aim to promote the development of poor and remote communities. GDA确保志愿者在需要我们帮助的地方与社区成员和当地项目合作伙伴合作。我们所有的项目都旨在促进贫困和偏远社区的发展。 There is no other chance like a GDA programme. Join us as a volunteer manager to develop your own skills while bringing benefits to the communities. 没有其他机会像GDA项目这样。加入我们，成为一名志愿者管理者，发展自己的技能，同时为社区带来好处。 Find out more about joining a GDA programme: 要了解更多关于GDA项目： Website: 网址： Email: 邮箱：
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