On Monday, English theoretical physicist, cosmologist, author and Director of Research at the Centre for Theoretical Cosmology within the University of Cambridge, Stephen Hawking went on the Larry King show. He was less than optimistic about the future of humanity.

Six years ago, Hawking was on the King show and said, "Mankind is in danger of destroying ourselves by our greed and stupidity." When asked if he thought humanity has changed since their last visit, Hawking replied, "We have certainly not become less greedy or less stupid."

In summarizing the last six years,

Stephen Hawking said, "Six years ago, I was warning about pollution and overcrowding; they have gotten worse since then."

Hawking's faith in humanity is apparently dwindling as the theoretical physicist predicted little more than doom and gloom. "The population has grown by half a billion since our last interview, with no end in sight. At this rate, it will be eleven billion by 2100. Air pollution has increased by 8 percent over the past five years. More than 80 percent of inhabitants of urban areas are exposed to unsafe levels of air pollution," he said.