1. 据报道，在过去的十年间，北极圈内的平均气温比以前升高了2-3摄氏度。
2. 要求各国减少温室气体排放，拯救地球。
3. 2010年新年刚开始，极度寒冷的天气袭击了亚洲、欧洲和北美洲。恶劣的天气正是全球变暖的后果。
就以上素材号召同学们行动起来积极应对地球变暖
注意：1. 开头结尾已给出；2。词数:100词左右；3. 可适当增加细节。
Dear fellow students,
It is reported that the average temperature within the Arctic Circle has risen by 2-3 degrees Celsius in the past ten years.
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Dear fellow students,
It is reported that the average temperature within the Arctic Circle has risen by 2-3 degrees Celsius in the past ten years. At the Copenhagen Climate Summit 2009 all nations were required to reduce the greenhouse gas emission to save the earth. At the beginning of 2010, extremely cold weather hit Asia, Europe, and North America, which is the evidence of global warming. As is known to all, our environment has been worsening due to human activity. If we don’t take effective measures now, human beings will not be able to survive in the future. If we can save energy, recycle waste and plant more trees, we can make the earth a better place. So let’s take action from now on! Let’s save the earth.
题目分析：本文为一篇“号召同学们行动起来积极应对地球变暖”英语倡议书。倡议对象的称呼已写好。首先写清楚发出此倡议的原因（地球变暖现状）；简要概述一下文章已经提到的三段素材。然后交代地球变暖对人类的重大恶劣影响，接着是写保护地球的具体措施。结尾要表示发出号召和希望。最后也可以写上发倡议者的名称。
点评：倡议书的写作，先写对发出倡议对象的称呼。2、正文：（1）写清楚发出此倡议的原因或目的。只有交代清楚倡议活动的目的、意义即重要性，倡议对象才能理解、才能采取自觉的行动来响应，否则就很难响应，起不到倡议应有的作用。（2）重点是写倡议的具体内容和要求及要求做到的具体事项。这部分一般是分条开列，以求清晰、明确。3、结尾要表示倡议者的决心和希望。4、最后要写上发倡议者的名称。