Sentence that mentions that the impact of climate change is far more horrible than war nukilir is not speculation or provocation against the activists of anti deployment of nuclear weapons that is now being gang up on Iran.
The sentence is saying the two champions of science, that is Stephen Hawking, the great physicist Albert Einstein post who initiated the Big Bang theory, and James Lovelock, a chemist who also environmental activists.
“… the impact of climate change on human life as chilling with nuclear war,” Hawking said as quoted by Science Daily end of January 2007.

Hawking urges mankind sought ways and means to address climate change because if not then the impact will be increasingly faced destroy life.
Sir Martin Rees, professor of cosmology and astrophysics at the University of Cambridge, England, strengthened by Hawking says climate change could potentially destroy the civilization of mankind.
More provocative sentence from the mouth of environmental activists bully, chemist James Lovelock, inventor and professor of the environmentalists that claimed climate change is far more dangerous than nuclear war.
“Even a nuclear war does not menyiptakan level of damage inflicted area of ​​global warming,” Lovelock said as quoted by the German weekly der Spiegel.
Lovelock proposed his famous analogy of Planet Earth which he regarded as “living creatures” in the famous hypothesis, Gaia Hypothesis. Gaia is the Earth Goddess in ancient Greek mythology.
In the hypothesis, Lovelock states that “Gaia” controlling living systems on land, water, and air so that Planet Earth is like a moving living organisms.
This hypothesis triggered a global movement gave birth to saving the environment as well as new science, Earth System Science.
Earth, says Lovelock, set their own temperature stability through sexual interplay between land, water, air, plants, bacteria, and fauna. » Read more: Impact of Climate Change More Terrible Than Nuclear War