Just as human activity is upsetting Earth's carbon cycle, our actions are altering the water cycle.

Despite the international scientific community's consensus on climate change, a small number of critics continue to deny that climate change exists or that humans are causing it. Widely known as climate change "skeptics" or "deniers," these individuals are generally not climate scientists and do not debate the science with the climate scientists.

Any scientist who tells you they know that GMOs are safe and not to worry about it, is either ignorant of the history of science or is deliberately lying. Nobody knows what the long-term effect will be.

We have become a force of nature.

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.

We are upsetting the atmosphere upon which all life depends. In the late 80s when I began to take climate change seriously, we referred to global warming as a "slowmotion catastrophe" one we expected to kick in perhaps generations later. Instead, the signs of change have accelerated alarmingly.

My earliest memory from childhood is of fishing with my father. And I remember vividly we were in a store, and we were buying a pup tent to go on our first camping trip.