Overpopulation in the United States will become THE single greatest issue facing Americans in the 21st century. We either solve it proactively… — Frosty Wooldridge Copy Share Image
Our biggest challenges for the ocean and for the planet are problems of perception. People need to understand that species extinctions, habitat… — Edith Widder Copy Share Image
We've made some heroic efforts, but the Earth as a whole is in worse shape today than 30 years ago, ... There's… — Denis Hayes Copy Share Image
If we somehow put a value on species extinction and factor that into our costs that bottom line would look very different.… — Ray Anderson Copy Share Image
In the beginning, there were bacteria.... [A] nearly universal assumption is that all subsequent life descended from the original life form through… — David M. Raup Copy Share Image
We're handing them [young people & future generations] a climate system which is potentially out of their control. We're in an emergency:… — James Hansen Copy Share Image
Shelters, conservationists, those concerned about unnecessary cruelty toward the animals we eat, and people working against species extinction fight to preserve the… — April Gornik Copy Share Image
In pushing other species to extinction, humanity is busy sawing off the limb on which it perches. — Anonymous Copy Share Image
Climate change is not a major issue because it will cause sea level rises or temperature increases, since we know how to… — Shailesh Rao Copy Share Image
I'm not saying we don't have our set of problems - climate crisis, species extinction, water and energy shortage - we surely… — Peter Diamandis Copy Share Image
![“In the beginning, there were bacteria.... [A] nearly universal assumption…” quote by David M. Raup](https://sms4smile.com/quotes/img-quotes/d27/david-m-raup-33751_ancestor_in-the-beginning-there-were-bacteria-a-n_1413265.jpg)
![“We're handing them [young people & future generations] a climate…” quote by James Hansen](https://sms4smile.com/quotes/img-quotes/1bc/james-hansen-7143_climate_we-re-handing-them-young-people-future-g_1485882.jpg)
