So what needs to be done?

Our energy sources are not sustainable.

For me, what's important.

And, of course, Arctic communities are toast.

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.

And you need to deal somehow break the link between human actions that change climate, and the climate change itself.

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.

And this is really about looking the challenges of peak oil and climate change square in the face, and responding with a creativity and an adaptability and an imagination that we really need.

I really enjoy the climate.

And that leads to starvation, it leads to uncertainty, it leads to unrest.

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.

Leaves energy decisions to individual choices.

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.

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

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

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.

I realized that, that I have to respond.

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.

They help moderate the temperature in our temperate zones and give us stable weather.

What's new is just the degree of it.

Now plants are under threat.

All of that, strip it away.

We see and feel the climate changes, the droughts and the flooding, the storms and the heat.