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Six minute english from bbc learning english dot com
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This is six minute english from bbc learning english
I'm fell
And i am paper
This summer is becoming one of the hotever ver heat waves across europe
Here in the uka new record for the highest june temperature was set at a sweltering thirty degreseven dederee celelcis
It seems the year after year temperatures are going up in twenty fifteen the cup
Twenty one summit agreed to limit global warming to one point five degree cells years
But since then research shows temperatures exceeding that leadning to warnings of catastrophic damage to earth's lilife support systems
And this episode will be discussing how hot the planet could get using some useful new vocabulary
And remember you'll find a free transcript to read along with on our website bb some learning english dot com
But first i have a question for you feel scientists monitor climate change using the earth's energy in balance
The difference between the solar energy entering the earth's atmosphere and the radiation going back out into space
But which unit the scientitiused for this is it a firrenheight b what's per square meter or see jeweloh and do jeles is something to liwith docogy so gonna go with see
Well
We'll find out the answer at the end of the program
Although careful listeners might hear the answer sooner
Oh
Some exciting so how do scientists calculate the effects of climate change in the first place
The answer is with models
Huge amounts of physical and chemical data are fed into supercomputers
Which then paint pictures of possible futures on earth
But as nasa climate scientist kate model explained to bbc world service programmes
The climate question
Nothing is certain climate models don't make predictions
They make projections
Predictions are saying this is what will happen
And a projection is conditional
A projection is if we do this
Then this will happen
And limate models don't make predictions
Those a contements of what's likely to happen
Instead
They make projections about different possible futures
And these depend on many things in other words
Climate models are conditional meaning that they depend on other factors
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The main fact in climate change of course is human activity especially greenhouse
Gas emismissions
Another influence on climate models is clouds
We usually associate hot summers with cloudless blue skys
But in fact clouds play a big part in clilimate as ate movelexexplained to the bbc well service
But in think about clouds is that they have this dual effect
They both cool the planet by blocking sunlight
They
They warn the planet
Because they have their own greenhouse effect
Right now the unit that scientitiused to measure the energy and balbalance of the planet
How much it's out of wake is what's like a late bulb per square meter ktes starts by saying
But think about clouds is
She uses the expression
The thing about to introduce the most important detail about something
So that detail is that clouds both cool planant by blocking suunlight is what's warmits by trapping heats
So climate models monitor clouds to accurate measure how much the earth is out of wac
It's something is out of wag
It's out of balance and not working properly um climate models sound very complicate to meme paper for one thing
How can you monitor clouds
Which are constantly moving and changing yeah
And how much information from around the world with the supercomputers need to make accurate projections
It's the concern that bbc presented gray
A jackson raisse with kate
Marvel for bb c world service program
The climate question
Surely we need to know the trajectory
We're heading in
In order to adapt
Oh
Absolutely you know i am
I am very pro science
I am very pro doing science
Because no climate change is unfortunately not on the table
Kate is very pro science
Because you pro something it means you're very favor of it
Models are complex
But then necessary
Because unfortunately no climate change at all is not on the table
And that's an india meaning
It's not an option
If all this sounds a bit depressing
Cate's final message is more hopeful a dmate models prove measure dtimpt
That the problem of global warming is created by humans
Now people know beond doubt that the solution is also in our hands
Now be a careful listeners might already know but go ahead and reveal the correct answer to your question
Yes
I ask you
Which unit scientitiused to measure the earth energy in balance
And the answer was what perth gram eter
And i didn't know that film right
It's time to recap the vocabulary
We had during this program
A prediction is a statement
But what you think will happen in the future
A prejeictive conditional means depending on other factors
You can use the informal expression
The thing about it's not an option
Is the most important feature or detail of something
The phrase out of waack means out of balance are not working
Properly
If you're pro something
You're in favor of it
And if something is not on the table
It's not a option
It's not available to us
That's the end of this episode of six minute
English find a worksheet anquiz on our website to test what you've land will be back next week with another episode that make sure
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For now by six minute english from bbc learning english dot com
