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

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

I don't join or leave things lightly.

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.

Everyone must be clear that business as usual is not an option. Most of us live in buildings erected long before we were born and our successors will have to live with the environmental consequences of the buildings we construct today. It is vital that we minimise harmful impacts for those who come after us

Many unsustainable behaviours are locked-in and made 'normal', not just by the way that we produce and consume, but by the absence of easy alternatives

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