I think that more diversity is a good thing, and fresh points of view articulated by people who are committed to excellence in journalism is a beneficial change in the American media landscape.

The survival of the United States of America as we know it is at risk. And even more — if more should be required — the future of human civilization is at stake.

I think the cost of energy will come down when we make this transition to renewable energy.

What's at risk [in 100 years] if we do not take action, truly is the survival of civilization as we know it... Literally that is the case. We have seen global warming so far of just a little bit less than one degree Celsius and look at what's happened. Superstorm Sandy. Boulder Colorado. All these fires. Hurricane Irene one year before.

A zebra does not change its spots.

Two thousand scientists, in a hundred countries, engaged in the most elaborate, well organized scientific collaboration in the history of humankind, have produced long-since a consensus that we will face a string of terrible catastrophes unless we act to prepare ourselves and deal with the underlying causes of global warming.

There are many who would much prefer that the word 'climate' never be mentioned and that the issue be eliminated from our national conversation.