There is no question that climate change is happening; the only arguable point is what part humans are playing in it.

The future of life on earth depends on our ability to take action. Many individuals are doing what they can, but real success can only come if there's a change in our societies and our economics and in our politics. I've been lucky in my lifetime to see some of the greatest spectacles that the natural world has to offer. Surely we have a responsibility to leave for future generations a planet that is healthy, inhabitable by all species

Natural history is not about producing fables.

The human population can no longer be allowed to grow in the same old uncontrollable way. If we do not take charge of our population size, then nature will do it for us and it is the poor people of the world who will suffer most

Instead of controlling the environment for the benefit of the population, perhaps we should control the population to ensure the survival of our environment

The World is full of wonders, but they become more Wonderful, not less Wonderful when Science looks at them.

I would be absolutely astounded if population growth and industrialisation and all the stuff we are pumping into the atmosphere hadn't changed the climatic balance. Of course it has. There is no valid argument for denial.