He said that there was a greater challenge ahead, the challenge of poverty, of climate change global challenges that needed global solutions and needed the creation of a truly global society.

So what needs to be done?

Our energy sources are not sustainable.

For me, what's important.

And, of course, Arctic communities are toast.

Here's another one completely different one

There's two great forces that are both volitional but inevitable.

Climate change is real.

We have now, and are the first generation with, the power to do this.

75 minutes.

In the U.K., the Thames Barrier protects London from storm surge.

You know, this is really an infinite thing.

Okay? We cannot reduce animal numbers to rest it more without causing desertification and climate change.

Don't we already know how they affect temperatures?

And the same thing is true for people who are in absolute crisis. Right?

It may surprise you that it's not only climate.

less stuff.

We're not even slowing down.

We, the people, still believe that our obligations as Americans are not just to ourselves, but to all posterity.

They've got no points of land more than about six feet above sea level.

And he used to be the USA Today Monday morning guy.

And I'll mention them the emission of CO2, climate change, the fact that we have the responsibility of the acceleration of the climate change.

How about a dare contest?

As we see the spread of it, we see national hubs emerging.

And we know the solar output's not constant through time.

So, always avoid war, because that always pushes human beings backward.

I'm going to have to take the law into my own hands.

So, we're not sure where this story is going to end, whether it's got a happy or sad ending.

And I think it really summarizes where we are here.

So those are all natural causes of climate change.

And more CO2 causes more warming.

And even at that time, with the introduction of agriculture, 8,000, 10,000 years ago we started to see climate change.

I'm just going to talk about two things.

They are both two branches of the same field of atmospheric science.

You know the climate.

The game retreated northward

I can't think of anything else that's happened in my lifetime that way.

When I realized that climate change was real, and it was not based on computer models,

That is the change needed to restore energy balance and prevent further warming.

Finn, truth or dare?

Presented by SEGA

What taunt?

The Chávez Challenge

What's new is just the degree of it.

Now plants are under threat.