Finally, the positive alternative meshes with our economic challenge and our national security challenge.最后是这个正面的方案，可以应对经济挑战和国家安全挑战。America is in crisis -- the economy, national security, the climate crisis.美国正处于危机当中--经济的、国家安全的、气候的危机。The thread that links them all: our addiction to carbon based fuel

In the last five years we&#39ve added 70 million tons of CO2 every 24 hours -- 25 million tons every day to the oceans.在过去五年间，我们每二十四小时已经增加了了七千万吨的二氧化碳排放量，每天排放两千五百万吨的二氧化碳到海里。Look carefully at the area of the eastern Pacific, from the Americas, extending westward,仔细看看太平洋得东边海域，从美洲一直延伸到西边，and on either s

Last year I showed these two slides so that demonstrate that the arctic ice cap,去年我给各位展示了两个关于北极冰帽的演示，which for most of the last three million years has been the size of the lower 48 states, has shrunk by 40 percent.在过去三百万年中，其面积由相当于美国南方48州面积总和缩减了40%。But this understates the seriousness of this partic

Frosty the coal man is a jolly, happy soul.雪白煤碳先生是个快乐的精灵。He&#39s abundant here in America, and he helps our economy grow.它在美国产量丰富，并且帮助我们的经济成长。Frosty the coal man is getting cleaner everyday.雪白的煤碳先生每天都越来越干净。He&#39s affordable and adorable, and workers keep their pay.它物美价廉，让工人们有薪水领。This is the source

And one reason is, this enormous heat sink heats up Greenland from the north.有一个原因，北方沉积的大量热能加热了格陵兰岛。This is an annual melting river. But the volumes are much larger than ever.这是一条每年融化的河。但流量却比往年都要大。This is the Kangerlussuaq River in southwest Greenland.这是格陵兰岛西南的康克鲁斯瓦格河。If you want to know how sea lev