My dad was this pint-sized Nigerian with an oversized personality. My mother is a tall six foot something Irish-English woman. Us walking down the street was quite an unusual sight, when I was growing up.

Some people welcome the flexibility of a zero-hours contract. But their growth is symptomatic of a wider issue - increasing job insecurity and falling living standards in David Cameron's Britain.

It was a Labour prime minister who appointed the first black male and female cabinet ministers.

My father was a rags-to-riches businessman who came over in the Sixties with no money. On my mother's side, I am the grandson of a High Court judge and celebrated intelligence officer, so it's quite an unusual combination.

The dialogue around climate change can often become mired in gloom and doom, which is understandable given the topic.

There are jobs to be created on both sides of the climate argument. Whether we are investing in oil or sun, coal or wind, gas or algae, the economy will be stimulated by the investment. The economy, unlike each of us, is not swayed by ideology.

As the former administrator of the Environmental Protection Agency and former governor of New Jersey, I have witnessed the impact of climate change firsthand.

The most important thing about global warming is this. Whether humans are responsible for the bulk of climate change is going to be left to the scientists, but it's all of our responsibility to leave this planet in better shape for the future generations than we found it.