【正文】 redictions of how our actions will affect the world 50 and 100 years from now. These changes are due to an increase in carbon dioxide put into the atmosphere since the beginning of the Industrial Revolution. The Earth has warmed up by roughly degrees Celsius since the beginning of the Revolution. There is already approximately a 1 degree rise built into the system, even if we stop all greenhouse gas emissions today. Why? It will take decades to warm up the deep oceans before the temperature reaches a new equilibrium.
　　過去幾十年中，我們的氣候一直在發(fā)生變化。1870年起，人們開始測量海平面上升的速度，現(xiàn)在的速度是那時的5倍。即使我們立刻停止所有溫室氣體的排放，氣溫仍然將比過去上升大約1度。ve been told for example, that, in a much warmer world, insects were bigger. I wonder if this thing buzzing around is a precursor.
　　如果全世界保持現(xiàn)在的經(jīng)濟模式不變，聯(lián)合國政府間氣候變化專門委員會(IPCC)預測，本世紀末將有50%的可能，氣溫至少上升5度。由于變化來得太快，包括人類在內(nèi)的許多生物，都將很難適應(yīng)。ldquo。ldquo。amp。的一個例子就是永久凍土層的融化。在冷庫中，冷凍食品在經(jīng)過長時間保存后，依然可以食用。
。一個腐爛的永久凍土層，將釋放出多少甲烷和二氧化碳?即使只有一部分的碳被釋放出來，可能也比我們從工業(yè)革命開始釋放出來的所有溫室氣體還要多。如果凍土融化，微生物就將廣泛繁殖，使得凍土層中的有機物快速腐爛。氣候引爆點amp。rdquo。rdquo。我不知道現(xiàn)在身旁嗡嗡叫的這只大蒼蠅，是不是就是前兆。那時，俄亥俄州和費城以下的大部分美國和加拿大的土地，都終年被冰川覆蓋。
　　If the world continues on a businessasusual path, the Intergovernmental Panel on Climate Change predicts that there is a fiftyfifty chance the temperature will exceed 5 degrees by the end of this century. This increase may not sound like much, but let me remind you that during the last ice age, the world was only 6 degrees colder. During this time, most of Canada and the United States down to Ohio and Pennsylvania were covered year round by a glacier. A world 5 degrees warmer will be very different. The change will be so rapid that many species, including Humans, will have a hard time adapting. Iamp?？茖W第一次在人類歷史上，預測出我們的行為對50~120xx年后的世界有何影響。但是，現(xiàn)在的測量表明氣候變化加速了。
　　In the last several decades, our climate has been changing. Climate change is not new: the Earth went through six ice ages in the past 600,000 years. However, recent measurements show that the climate has begun to change rapidly. The size of the North Polar Ice Cap in the month of September is only half the size it was a mere 50 years ago. The sea level which been rising since direct measurements began in 1870 at a rate that is now five times faster than it was at the beginning of recorded measurements. Hereamp。我的一生中，得到的多于我付出的，所以我要回報社會。
　　I began teaching with the idea of giving back。他們中有30多人，現(xiàn)在已經(jīng)是教授了。從那時起，就是我開始向他們學習了。他們生機勃勃，充滿熱情，思想自由，還沒被生活的重壓改變。rdquo。quot。quot。他也是從伯克利分校去了貝爾實驗室，幾年前又離開貝爾實驗室去了斯坦福大學。rdquo。大學。amp。 but I wanted to leave behind something more than scientific articles. I wanted to teach and give birth to my own set of scientific children.
　　在貝爾實驗室待了9年后，我決定離開這個溫暖舒適的象牙塔，走進我眼中的amp。 a university. Bell Labs, to quote what was said about Mary Poppins, was amp。
　　After nine years at Bell labs, I decide