Also in this playlist...
This transcript is automatically generated
Well a new warning from -- is suggesting the earth may be on the verge of another mass extinction.
So it's similar to what killed the dinosaurs that happened five times in the past five -- forty million years but this time around.
Experts say we may be able to stop it 18 o'clock news if if if if professor city university of new York and author of the new book physics of the future.
With important new book -- Alright doctor -- getting right to a to which species would be most at risk.
Well so far if you analyze the last few hundred years of life on the earth.
Human activity apparently has wiped out one point 4%.
Of all plant and animal species.
And it is a hundred to a thousand times faster than normal.
Pollution over harvesting.
And if you take a look at a zoo many of the zoo animals that are children love.
We may find them going extinct the tiger for example on -- -- -- many of the familiar zoo animals bears.
And realize -- 181000 species are at risk and what about climate control how does that -- world.
-- climate change is also involved in this thing independent of where climate change comes from we see that the seasons are changing Summers are getting longer.
Winters are getting shorter on average.
And we always say that the early -- it -- the word.
But that assumes that the war and the -- synchronize.
Maybe -- perhaps administered areas so we humans cannot be divorced from what's happening in the natural world the Fed could be divorced something we can do about it I guess is that pollution is one thing we can do.
But so what happens doctor if -- is not the sort of scientific crooning -- that would -- be overrun with all sorts of creatures.
Well -- -- survival of the fittest and so far we humans are among the fittest but.
We are also at the top of the food chain the top of the pyramid.
And it wouldn't take much to dislodge us for being at the top of the food chain so who could rank this -- -- -- -- you -- do what -- animal thing to look out for well in science fiction of course the insects takeover.
But look at something very simple we are depended on just a few -- so we eat rice.
And it just a few crops and if a polite word to wipe out these crops.
Then I huge chunk of humanity would starve to -- -- we're so dependent.
I'm just a few plants and animals for our existence of those who we expand our news that -- -- there's something else that -- -- provides that we should be looking and we should be wary of all over hardest thing for example over harvesting the -- we have dragnet which in principle could drag the entire -- That's how efficient our technology is.
Also meat production we have to worry about because water water is the key to pre production.
And they're gonna be perhaps -- -- in the future everything what are your parents that water wars and that we may run out of water.
Well they're always the water on the earth but the question is the costs and what it would take to extract it to -- -- made it to diverted to irrigate.
And the soul of the costs of certain kinds of commodities could start to rise so just because we're -- at the popular food chain does -- mean that we're invulnerable -- what's happening outside.
Whereby biodiversity is being threatened you -- and we have to go -- you mentioned insects could overrun earth.
Well that's -- science fiction happen.
The -- they never seem to go okay if not better got a I got away get rid of them.
My doctor -- -- thank you so much and Nittany your new book we're looking -- physics of the future that you are.
Filter by section