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I think the climate is changing, but I don't believe humans are causing that change to the extent that's been in the news.

It should simply be an empirical matter whether the climate is changing or not and whether we're responsible. But the various sides of the debate have now become so tribal that it's no longer a matter of changing our views as more information comes in.

I think the climate has been changing for billions of years.

There is an air of unreality in debating these arcane points when the world is changing in such dramatic ways right in front of our eyes because of global warming.

There's no question that, um, you know, the oceans have risen, right? And the climate change part is, is a real part of it.

I think there is a degree of speculation that is satisfied the climate is changing.

Human beings are definitely changing the planet, but how much impact they are having on climate, I don't know and I don't care.

The climate is changing; I don't think you can deny that. But climate has always changed.

I believe the earth's climate is changing, but I think it's changing for natural variation reasons and I think mankind has been adapting to climate as long as man has walked the earth.

Despite widely differing perspectives and agendas, there seems to be a remarkable global consensus that has built up over a fairly short period of time that climate change and ecology is one of the truly defining issues for humanity.