We've got to care about this matter of global warming

because if we don't do anything about it

there won't be anybody here.

During my lifetime the big change that's happened to the world

has been the development of machines and devices and inventions.

It's about time we went back

to taking an interest in the environment.

The Earth has an impossible atmosphere.

For it to have happened by accident,

the odds against it run into countless billions-to-one against.

So something's going on.

I tend to think of the Earth as alive in a sense

like an animal or a plant or any other living thing.

Gaia looks after us.

What happens to the planet

when more carbon dioxide is put in the air?

The Earth will get hotter.

It will heat up to a point

where no life on it of our kind will be possible.

Take an interest in the natural world,

in plants and animals and things that grow naturally.

Not worry too much at all about schooling.

The three R's yes, they're very important, but all the other stuff

I think could be ditched in favour

of a better understanding of the world.

There are answers of various kinds

but I think it needs the right sort of politics

to change people's thinking about these things

and I'd like to see these youngsters using their energies

and their talent in this way

rather than looking for some techy answer

because I don't think the answer's going to come that way.

I think we have all the things needed to stop global warming

we're just not using them.