We face huge pressures and must make big decisions. How do we spend our collective wealth? Do we opt for nuclear energy or should we pursue a decentralised approach? Do we rely on changes in the way consumers behave, or must the government take the lead? Can we find a way to balance the ever growing needs of society and protect the natural world?

Zac Goldsmith will argue that our defining challenge now is to harmonise the market with the environment. An economy that puts no value on the natural world cannot be sustained. An environmentalism that ignores the needs of people will be rejected.