气候问题是我们的经济发展在无意中带来的后果。
[00:05.29]We depend on fossil energy to keep our homes warm in the winter, cool in the summer, and lit at night;
我们太依赖化石能源在冬天取暖，夏天制冷，夜间照明，
[00:11.14]we use it to travel across town and across continents.
长途旅行，环球观光。
[00:14.34]Energy is a fundamental reason for the prosperity we enjoy, and we will not surrender this prosperity.
能源是经济繁荣的基础，我们不可能放弃经济繁荣。
[00:22.09]The United States has 3 percent of the world population, and yet, we consume 25 percent of the energy.
美国人口占全世界的3%，但是我们消耗全世界25%的能源。
[00:29.40]By contrast, there are 1.6 billion people who don’t have access to electricity.
与此形成对照，全世界还有16亿人没有电，
[00:36.11]Hundreds of millions of people still cook with twigs or dung.
数亿人依靠燃烧树枝和动物粪便来煮饭。
[00:40.26]The life we enjoy may not be within the reach of the developing world,
发展中国家的人民享受不到我们的生活，
[00:45.17]but it is within sight, and they want what we have.
但是他们都看在眼里，他们渴望拥有我们拥有的东西。
[00:49.40]Here is the dilemma.
这就是新的挑战。
[00:51.38]How much are we willing to invest, as a world society,
全世界作为一个整体，我们到底愿意付出多少来缓和气候变化?
[00:54.48]to mitigate the consequences of climate change that will not be realized for at least 100 years?
这种变化至少在100年内还不会出现。
[01:00.47]Deeply rooted in all cultures, is the notion of generational responsibility.
代际责任的观念深深植根于所有文化中。
[01:06.12]Parents work hard so that their children will have a better life.
父母为了他们的孩子有更好的生活而努力工作。
[01:09.42]Climate change will affect the entire world, but our natural focus is on the welfare of our immediate families.
气候变化将影响整个世界，但是我们的天性使得我们只关心个人家庭的幸福。
[01:15.46]Can we, as a world society, meet our responsibility to future generations?
我们能不能把全世界看作一个整体，为子孙后代承担责任?
[01:23.17]While I am worried, I am hopeful we will solve this problem.
虽然我忧心忡忡，但是还是对未来抱由希望，这个问题将会得到解决。
[01:26.30]I became the director of the Lawrence Berkeley National Laboratory,
我同意出任劳伦斯·伯克利国家实验室主任，
[01:29.38]in part because I wanted to enlist some of the best scientific minds to help battle against climate change.
部分原因是我想招募世界上一些最好的科学家，来研究应对气候变化的对策。
[01:36.06]I was there only four and a half years, the shortest serving director in the 78-year history of the Lab,
我在那里干了4年半，是这个实验室78年的历史中任期最短的主任，
[01:41.53]but when I left, a number of very exciting energy institutes at the Berkeley Lab and UC Berkeley had been established.
但是当我离任时，在伯克利实验室和伯克利分校，一些非常激动人心的能源研究机构已经建立起来了。
