I know Bill Joy was talking to you about the wonders of carbon nanotubes, so I'm going to talk to you about the wonders of carbon macro-tubes, which is charcoal.  So this is a picture of rural Haiti. Haiti is now 98 percent deforested.
我知道Bill Joy和大家讲过 碳纳管的奇妙之处 那今天我就和大家讲讲 大碳管也就是木炭的妙用 这是一张海地乡村的照片，海地国土面积的98%如今都没有森林覆盖了