Restoring natural habitats could be a good way to reduce the frequency and severity of floods, so why don't insurance companies help pay?

For more than four decades the front lines of environmental campaigning have been located in the worlds of politics and technology. New laws driving cleaner and more efficient ways of doing things have been at the core of the environmental agenda, and up to a point it has worked.

While efforts to tackle climate change bring a host of major challenges, there are opportunities too. This fact is not least demonstrated by the entrepreneurial individuals who are coming up with so many innovative emissions-busting solutions.

Letter:

Sir: Richard Dawkins blames the media for "whipping up ignorant hysteria" over genetically engineered foods. But the fact remains that genetic engineering poses potential threats that have yet to be fully explored.