Human technology has made it to Mars. We are transmitting gorgeous pictures from it. Yet we have not explored our own planet. Two-thirds of it is covered with oceans that are still mysterious places. – Barbara Block
Loads of chemicals and hazardous wastes have been introduced into the atmosphere that didn’t even exist in 1948. The environmental condition of the planet is far worse than it was 42 years ago. – Gaylord Nelson
Fungi are the grand recyclers of the planet and the vanguard species in habitat restoration. – Paul Stamets
If the means were available, we could trace our ancestry – yours and mine – back to the first blob of life-like material that came into being on the planet. – Clifford D. Simak
For nearly 2 million years, our ancestors survived and thrived and spread across the planet because they could run other mammals into heat exhaustion. – Christopher McDougall
We’re the only species that have crapped up the planet and the only species that can clean it up. – Dennis Weaver
We live on the most incredible planet, and yet we abuse it, and we abuse it mercilessly. – Paul Watson
Natural disasters in Bolivia have been getting worse with the passage of time. It’s brought about by a system: the capitalist system, the unbridled industrialization of the resources of the Planet Earth. – Evo Morales
Stories where the author has known very little, but run a computer program that tells him how to construct a planet, and looked up specific things about rocketry and so on, really suck. – Frederik Pohl
I’m not the hottest tuner on the planet, so I normally get someone to come out and do it for me. – Caroline Corr
We have altered the physical, chemical and biological properties of the planet on a geological scale. We have left no part of the globe untouched. – David Suzuki
This planet came with a set of instructions, but we seem to have misplaced them. Civilization needs a new operating system. – Paul Hawken