In the end, human history is made up of all our decisions.

If you decide to run for the leadership, you have to go through it with the people you love. But you also have to protect them and I am determined to protect my mum.

What's now urgently needed [to stop environmental disaster] is the international political commitment to take action to avoid dangerous climate change.

Essentially, by 2050 we need all activities outside agriculture to be near zero carbon emitting if we are to stop carbon dioxide levels in the atmosphere growing

Good politics starts with empathy, proceeds to analysis, then sets out values and establishes the vision, before getting to the nitty-gritty of policy solutions.

Economic dynamism can be combined with environmental and social responsibility. High financial returns can go hand in hand with respect for human rights, and the preservation of the planet's natural resources

The science is getting worse faster than the politics is getting better.