Noreena Hertz

People are looking for certainty. The more complex the world becomes, the more people look for people to give them certainty and tell them what to do. During the past few years of actively thinking about this, there is one thing that I have accepted: certainty is not out there. There is not one strategy to follow, and that's OK.

Child labour may be distasteful to westerners, but does boycotting goods made with child labour improve or exacerbate the lot of third world children? Trusting the market to regulate may not ultimately be in our interest.

What about those who help growth indirectly, those who stay at home and look after others - mothers, carers of elderly parents or sick relatives who save the state millions of pounds annually. What is their worth? How is their value to be determined?

I want to tell mayors, county chiefs and heads of big companies: don't just chase GDP growth; don't chase the biggest profits at the expense of our children and grandchildren and at the cost of sacrificing our ecological environment.

To far too many, science is a four-letter word, and under the modern media's false equivalency standards, a handful of skeptics are viewed as counterweights to the vast majority of scientists who acknowledge mankind's proven role in global warming.