One of the joys of being a grandparent is getting to see the world again through the eyes of a child.

Faced with the evidence, many deniers have started to admit that global warming is real, but argue that humans have little or nothing to do with it.

Perhaps the whole world is actually a banquet, to which every living thing is invited. First you come as guests: then eventually you're on the menu.

How do commercial interests usually protect themselves from liability claims? Through insurance. In fact, in our society, the litmus test for safety is insurance. You can be insured for almost anything if you pay enough for the premium, but if the insurance industry isn't willing to bet its money on the safety of [biotechnology], it means the risks are simply too high or too uncertain for them to take the gamble.

Economics and a reliance on science and technology to solve our problems has led to an unsustainable situation where continued growth in consumption is required for governments and business to be considered successful. This is a form of insanity. Economics is at the heart of our destructive ways and our faith in it has blinded us

With an estimated population of nine billion people by 2050, we cannot continue to consume resources at the same rate and maintain our quality of life.

For the sake of our health, our children and grandchildren and even our economic well-being, we must make protecting the planet our top priority.