Tongji University joined “UNEP Climate Neutral Network”. UNEP Climate Neutral Network was Launched in February 2008. CN Net is a network for sharing ideas, success stories and best practices on moving towards climate neutrality by reducing and offsetting your greenhouse gas emissions. You will be able to get the resources and tools you need to make a real difference, offer your successful ideas for others to implement, and interact with like-minded pioneers of a growing global movement.