John Tjostem, microbiology, botany, professor emeritus of biology - Will our children and grandchildren inherit a world that has adequate food and clean energy resources to offer quality of life? If yes, we must grapple with three thorny issues which threaten to reduce quality of life in the future: 1) Finding abundant clean energy to replace dwindling fossil fuels; 2) Bringing our world’s population down to a long term sustainable level; 3) Slowing climate change.

To say that the Earth is a human planet becomes truer every day. Humans are made from the Earth, and the Earth is remade by human hands. Many earth scientists express this by stating that the Earth has entered a new geological epoch: the Anthropocene, the Age of Humans.

As scholars, scientists, campaigners, and citizens, we write with the conviction that knowledge and technology, applied with wisdom, might allow for a good, or even great, Anthropocene. A good Anthropocene demands that humans use their growing social, economic, and technological powers to make life better for people, stabilize the climate, and protect the natural world.

Stewart Brand, 2005 -Over the next ten years, I predict, the mainstream of the environmental movement will reverse its opinion and activism in four major areas: population growth, urbanization, genetically engineered organisms, and nuclear power. Reversals of this sort have occurred before.

Stewart Brand On Why Environmentalists Should Embrace Nuclear Power. Considering all the alternatives, including wind and solar, environmentalists must come to terms with the reality that nuclear power is the greenest, safest, most reliable answer to our energy challenges. That is the message from leading environmentalist, counter-cultural icon, and once-opponent of nuclear power Stewart Brand in a new video interview posted by Big Think.