As species are exterminated by shifting climate zones…

If enough species are extinguished, will the ecosystems collapse, and will the extinction of most other species follow soon afterward? The only answer anyone…

— E. O. Wilson

For the economy itself will die if our ecosystems collapse.

— Leonardo DiCaprio

If we and the rest of the back-boned animals were to disappear overnight, the rest of the world would get on pretty well. But…

— David Attenborough

We, Homo sapiens, destroyed the majority of the large mammalian species in North America and Australasia just over 10,000 years ago. We, Homo sapiens,…

— Michael Smith

Destroying species is like tearing pages out of an unread book, written in a language humans hardly know how to read, about the place…

— Holmes Rolston III

If the life-supporting ecosystems of the planet are to survive for future generations, the consumer society will have to dramatically curtail its use of…

— Alan Thein Durning

We're handing them [young people & future generations] a climate system which is potentially out of their control. We're in an emergency: you can…

— James Hansen

A large animal needs a large area. If you protect that area, you're also protecting thousands of other plants and animals. You're saving all…

— George Schaller

Ocean energy can contribute a great deal toward the protection or our atmosphere - without damaging marine ecosystems that are equally vital to the…

— Fred Krupp

Restoration ecology is experimental science, a science of love and altruism. In its attempts to reverse the processes of ecosystem degradation it runs exactly…

— Stephanie Mills

School leadership has been identified as another critical element of student success, and subsequently enough resources and training should be provided to our school…

— Shaheen Mistri

I am passionate about making sure that we collectively and proactively preserve all of the world's most iconic coastal and oceanic wild places -…

— Serge Dedina

There are ecosystems like coral reefs [at risk] through ocean acidification. Those are valuable things that we should protect.

— Bill Gates

Let us be good stewards of the Earth we inherited. All of us have to share the Earth's fragile ecosystems and precious resources, and…

— Kofi Annan

In many environments, take away the ants and there would be partial collapses in many of the land ecosystems.

— E. O. Wilson