Scientific monitoring is going to be terrifically important, because whatever steps we take ... we will have to monitor those steps in order to know if they're actually working.

Yet again, unscientific claims were being circulated broadly, but the scientists' refutation of them was published where only fellow scientists would see it.

We don't survive without plants and animals because we rely on them, we rely on plants to put oxygen into the atmosphere, we rely on ... fish and crops and cows to eat.

What to do about climate change is political, it's social, and it's moral, which is one of the reasons the scientific community reached out to the Pope, to ask for his involvement in this issue.

I think it is important for people to understand that there are real serious economic costs and real serious economic damages associated with inaction on climate change.

Most people have thought of ... climate change as a problem about the environment that is separate and distinct from problems of human wellbeing.

There's real economic costs to climate change - So, Superstorm Sandy led to billions of dollars in damages. The fires out in the west, 70 million dollars a day are being spent in fighting fires that have clearly been exacerbated by drought and climate change. So, people have pointed out the true dollars and cents cost of inaction on climate change.