We've known for some time that we have to worry about the impacts of climate change on our children's and grandchildren's generations. But we now have to worry about ourselves as well.

You have to make your choice and live with your choice.

One of the reasons I came into politics was because I thought I lacked the skills to be a social worker.

It is a stark and arresting fact that, since the middle of the 20th century, humankind has consumed more natural resources than in all previous human history

The rewards that will flow from a successful shift to a low carbon economy are high. Neither governments nor business can afford to let these opportunities pass them by

Humankind has the science and technology to destroy itself or to provide prosperity for all. But while science offers us these opportunities, science will not make that choice for us. Only the moral power of a world acting as a community can

We've known for some time that we have to worry about the impacts of climate change on our children's and grandchildren's generations. But we now have to worry about ourselves as well.