In 2002, China started a huge project with an estimated investment of 500 billion yuan. It is estimated that it will take at least 40 years to complete this project. What kind of project made China invest so much time and money to build it? Well, this is the South-to-North Water Diversion to solve the water problem of northern Chinese. Up to now, it has been under construction for 20 years and cost 250 billion yuan, however, it has not been completed. So, when will it be completed? How great is it? Despite this, the project has already solved the water problem of hundreds of millions of people before it is completed. In fact, it is very difficult to build a waterway that spans more than 1,000 kilometers. There are countless issues related to people relocation, blowing up mountains, environment pollution and so on. As a result, human engineering marvels and, of course, touching stories are everywhere along China's South-to-North Water Diversion Project. Hi, welcome to Hot Topics Time. In today's video, let’s take a closer look to China's greatest project - the South-to-North Water Diversion Project.