For two centuries, since the Age of the Enlightenment, we assumed that whatever the advance of science, whatever the economic development, whatever the increase in human numbers, the world would go on much the same. That was progress. And that was what we wanted.
Now we know that this is no longer true.
We have become more and more aware of the growing imbalance between our species and other species, between population and resources, between humankind and the natural order of which we are part.
In recent years, we have been playing with the conditions of the life we know on the surface of our planet. We have cared too little for our seas, our forests and our land. We have treated the air and the oceans like a dustbin. We have come to realise that man’s activities and numbers threaten to upset the biological balance which we have taken for granted and on which human life depends.
We must remember our duty to Nature before it is too late. That duty is constant. It is never completed. It lives on as we breathe. It endures as we eat and sleep, work and rest, as we are born and as we pass away. The duty to Nature will remain long after our own endeavours have brought peace to the Middle East. It will weigh on our shoulders for as long as we wish to dwell on a living and thriving planet, and hand it on to our children and theirs
Margaret Thatcher, via Speech at 2nd World Climate Conference | Margaret Thatcher Foundation, following links from Iain Dale.
Surprised? And the left complain that the Conservatives only just discovered the environment: ridiculous.