A Quote by James Hansen

Several times in Earth's history, rapid global warming occurred, apparently spurred by amplifying feedbacks. In each case, more than half of plant and animal species became extinct. New species came into being over tens and hundreds of thousands of years. But these are time scales and generations that we cannot imagine.

James Hansen

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Animal Apparently Became Being Came Cannot Case Each Earth Extinct Generations Global Global Warming Half History Hundreds Hundreds Of Thousands Imagine More New Occurred Over Plant Rapid Scales Several Species Tens Than Thousands Thousands Of Years Time Times Warming We Cannot Years

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James Hansen
American - Scientist
Born: March 29, 1941

For millions of years, on average, one species became extinct every century.... We are now heaving more than a thousand different species of animals and plants off the planet every year.

Douglas Adams

A species may eat a particular bacterium, phytoplankton, smaller fish, or plant in an area. Lacking a predator, these species/populations will overgrow and alter the area's biology, overwhelming and driving to extinction dozens or hundreds or thousands of other local species.

Thom Hartmann

It is astonishing to realise that the human species survived hundreds of thousands of years, more than 99 percent of its time on this planet, with a life expectancy of only eighteen years.

Leonard Hayflick

It's our human nature to explore. Tens of thousands of years ago, our species walked out of Africa, traveling far and wide across the entire planet, from the Arctic to the tip of Tierra Del Fuego, making us the most geographically diversified species on Earth.

Conrad Anker

Each of these [bacterial] species are masterpieces of evolution. Each has persisted for thousands to millions of years. Each is exquisitely adapted to the environment in which it lives, interlocked with other species to form ecosystems upon which our own lives depend in ways we have not begun even to imagine.

E. O. Wilson

One animal or plant species may become extinct every hour. All species are doomed to extinction, but man through worldwide development/killing animals for food/profit/using toxic chemicals such as pesticides/industrial wastes, will accelerate the extinction of plants/animals and the result will be a more hostile environment for man.

Erik P. Eckholm

It is a fact that the ecological devastation of the planet can be traced to the consumption of meat and dairy, which contributes to water, soil, and air pollution as well as global warming and the mass extinction of many species of plant and animal forms.

Sharon Gannon

We're being challenged to do something so profound, it's unprecedented in the history of our species, and there couldn't be more at stake. It's not even our species at stake; it's the whole dream of life on earth that's taken 4.5 billion years to realize - all this beautiful pastoral life on earth.

Anohni

Researchers keep identifying new species, but they have no idea about the life cycle of a given species or its other hosts. They cut open an animal and find a new species. Where did it come from? What effect does it have on its host? What is its next host? They don't know and they don't have time to find out, because there are too many other species waiting to be discovered and described.

Carl Zimmer

It's fair to say when you go out and walk in the woods or on a beach, the most conspicuous forms of life you will see are plants and animals, and certainly there's a huge diversity of those types of organisms, perhaps 10 million animal species and several hundred thousand plant species.

Andrew H. Knoll

Man is perhaps half mind and half matter in the same way as the polyp is half plant and half animal. The strangest creatures are always found on the border lines of species.

Georg C. Lichtenberg

When I am at a dinner table, I love to ask everybody, 'How long do you think our species might last?' I've read that the average age of a species, of any species, is about two million years. Is it possible we can have an average life span as a species? And do you picture us two million years more or a million and a half years, or 5,000?

Alan Alda

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 these species that future generations will want - you're saving the world for your children and your children's children. . . . The destruction of species is final. If you lose a species, you lose the genes, you lose all the potential drugs and potential foods that could be useful to the next generations. The ecosystems will not function as they have.

George Schaller

Reversing global warming will take a World War II level of mobilization. It is the work of tens of millions, not hundreds of thousands.

Van Jones

Diversity is a survival factor for the community itself. A community of a hundred million species can survive anything short of total global catastrophe. Within that hundred million will be thousands that could survive a global temperature drop of twenty degrees—which would be a lot more devastating than it sounds. Within that hundred million will be thousands that could survive a global temperature rise of twenty degrees. But a community of a hundred species or a thousand species has almost no survival value at all.

Daniel Quinn

I'd bet almost anything that life from another planet, if formed independently from life on Earth, would be more different from all species of Earth life than any two species of Earth life are from each other.

Neil deGrasse Tyson

A Quote by James Hansen

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