I can't be bought. I don't need to be bought. I'm not a careerist. I don't need to have a career in politics. I'm in a very, very luxurious position, but I am in a position of strength.

I wanted to weave a green thread through the Conservative party; that's my job, and I signed up imagining that I would be in a very small minority within my party, possibly even on my own, battling away on these issues.

All schools should teach children basic cooking skills. Every school should be able to buy sustainable, good quality food wherever possible from local sources. Every school should include food-growing in the curriculum. For some, that will mean twinning with willing farms. For others, it will mean literally building their own small farms.

More than half the world's largest 100 economies are corporations. They have no loyalties to place or citizens.

The environmental benefits of hydrogen are also outstanding. When used as an energy source, hydrogen produces no emissions besides water. Zero polluting emissions, an amazing advance over the current sources of energy that we use.

As Development Secretary, I have seen in the developing world that climate change there is not a theory, is not a future threat: it is a contemporary crisis.

Human civilization as we know it is like the Titanic headed for the iceberg, whether the iceberg be nuclear, environmental or terrorism-related.

What is now called 'green architecture' is an opportunistic caricature of a much deeper consideration of the issues related to sustainability that architecture has been engaged with for many years. It was one of the first professions that was deeply concerned with these issues and that had an intellectual response to them.