In the race to be the world's leader in green technology, China is speeding ahead of its global competition.
Nowhere is that more apparent than in the cockpit of one of China's high-speed bullet trains, where you can see trains screaming toward you at speeds up to 230 miles per hour. Next year, the Chinese plan to test a train that could top 300 miles per hour.
Watch "World News with Diane Sawyer" for more from China tonight.
We joined the crush of passengers in Beijing boarding a...Full Story