I've become interested in the impact of climate change on the world and the future of energy needs for the developing world.

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.

Nuclear power cannot save the world from climate change. Returning to nuclear will simply hamper real action to reduce energy demand, develop better alternatives and tackle climate chaos.

Energy prices in general have been going up, as are concerns about energy security and climate change.

The oceans store an enormous amount of heat energy, and they act to buffer any rapid climate change. If there is any significant change in the amount of heat stored by the oceans, this would effect global temperatures.

We know that climate change is the single most important environmental issue facing the world today. ... The longer we wait the larger will be the challenge,