If you think about your and my grandchildren, this is what really worries me. I don't want them - if I'm still alive by then - to say, 'Why didn't you do something about it?', when you could have done.

One of the main reasons for the conflict in Syria, and the terrorism that it's spawned, is climate change and drought.

If you think about your and my grandchildren, this is what really worries me. I don't want them - if I'm still alive by then - to say, 'Why didn't you do something about it?', when you could have done.

Forests ... are in fact the world's air-conditioning system-the very lungs of the planet-and help to store the largest body of freshwater on the planet ... essential to produce food for our planet's growing population. The rainforests of the world also provide the livelihoods of more than a billion of the poorest people on this Earth... In simple terms, the rainforests, which encircle the world, are our very life-support system-and we are on the verge of switching it off.

We don't, in a sensible world, want to hand on an increasingly dysfunctional world to our grandchildren.

If you chuck away too many things, you end up discovering there was value in them.

Climate change should be seen as the greatest challenge to face man and treated as a much bigger priority in the United Kingdom.