and today Stephen Hawking and Sir Martin Rees stood up and demanded that the world take notice.
"As we stand at the brink of a second nuclear age and a period of unprecedented climate change, scientists have a special responsibility once again to inform the public and advise leaders about the perils that humanity faces.
"We foresee great perils if governments and society do not take action now to render nuclear weapons obsolete and prevent further climate change."
A one two punch in this revision of the clock. Not only does the nuclear threat appear to getting worse, but the reality that we are destroying the planet we live on is being noted.