Liu retired from journalism in 1997 and became the director of the Environmental Education Media Project (EEMP). With the EEMP he uses television to provide information about ecology, sustainable development, public health in China and other countries. Liu emphasizes that the harmful effect of humans on the world is not only caused by greenhouse gasses, but is to a great extent caused by the destruction of biomass, organic matter and biodiversity. Liu claims that the decline in these factors has led to higher temperatures and loss of arable soil, in the end leading to desertification. Liu sees a solution for these problems in the way people look at money, as people currently value the products and services derived from ecosystems higher than the ecosystems themselves.