Chinese writer Cixin Liu is one of the world's most highly respected science- fiction authors, known for epics such as "The Three Body Problem," soon to be adapted as a major TV series. He shared his thoughts on the future of the planet, at an event held at UN Headquarters to mark Chinese Language Day. "There is no doubting the importance of the current foundations for the sustainability, from environmental protection to the fight against climate change, and green lifestyles. In the foreseeable future, upholding all these principles will be fundamental if humanity is to thrive. To continue to grow,...