Canada is blessed with some of the last vestiges of pristine nature on Earth -- unbroken forests, coastlines and prairies, thousands of rivers, streams and lakes, open skies, abundant fresh air. We are also defined by our Constitution. Our Constitution's Charter of Rights and Freedoms gives us freedom of expression, equal protection from discrimination and the right to life, liberty and security of the person. But it doesn't mention the environment. How can we fully enjoy our freedoms without the right to live in a healthy environment?