Name: 【TED】George Monbiot: For more wonder, rewild the world (For more wonder, rewild the world | George Monbiot)
Uploaded: 2017-01-18T15:34:50.000Z
Duration: 15 min 11 s
Description: Thousands of YouTube videos with English-Chinese subtitles! Now you can learn to understand native speakers, expand your vocabulary, and improve your pronunciation...

When I was a young man, I spent six years

in some of the most bewitching parts of the world.

I was as reckless and foolish as only young men can be.

But I also felt more alive than I've ever done since.

And when I came home, I found the scope of my existence

until loading the dishwasher seemed like an interesting challenge.

Now, we evolved in rather more challenging times than these,

in a world of horns and tusks and fangs and claws.

And we still possess the fear and the courage

and the aggression required to navigate those times.

But in our comfortable, safe, crowded lands,

we have few opportunities to exercise them

And this was the sort of constraint that I found myself

that's almost been the dominant aim of industrialized societies,

and having got there, or almost got there,

we have just encountered a new set of unmet needs.

Now, I don't romanticize evolutionary time.

I'm already beyond the lifespan of most hunter-gatherers,

and the outcome of a mortal combat between me

myopically stumbling around with a stone-tipped spear

Nor was it authenticity that I was looking for.

I don't find that a useful or even intelligible concept.

than I've been able to lead in Britain, or, indeed,

that we can lead in most parts of the industrialized world.

And it was only when I stumbled across an unfamiliar word

that I began to understand what I was looking for.

and even though rewilding is a young word,

But there are two in particular that fascinate me.

One of the most exciting scientific findings

has been the discovery of widespread trophic cascades.

A trophic cascade is an ecological process

which starts at the top of the food chain

and tumbles all the way down to the bottom,

in the Yellowstone National Park in the United States

Now, we all know that wolves kill various species of animals,

It sounds strange, but just follow me for a while.

The numbers of deer, because there was nothing to hunt them,

had built up and built up in the Yellowstone Park,

and despite efforts by humans to control them,

they'd managed to reduce much of the vegetation there

to almost nothing, they'd just grazed it away.

they started to have the most remarkable effects.

First, of course, they killed some of the deer,

they radically changed the behavior of the deer.

The deer started avoiding certain parts of the park,

the places where they could be trapped most easily,

and immediately those places started to regenerate.

Bare valley sides quickly became forests of aspen

The number of songbirds, of migratory birds,

The number of beavers started to increase,

And beavers, like wolves, are ecosystem engineers.

provided habitats for otters and muskrats

and ducks and fish and reptiles and amphibians.

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【TED】George Monbiot: For more wonder, rewild the world (For more wonder, rewild the world | George Monbiot)

crucial

sort

physical

evolve