The Great Global Warming Swindle Page #3

the bulk of the atmosphere

is not warming as much as...

we see at the surface in this region.

And that's a real head

scratcher for us,

because the theory is

pretty straightforward:

and the theory says that

if the surface warms,

the upper atmosphere

should warm rapidly.

The rise in temperature of that

part of the atmosphere...

...is not very dramatic at all and

really does not match the theory

...that climate models are

expressing at this point.

One of the problems thas is plaguing

the models is that they predict that,

as you go up through the atmosphere

(except in the polar regions),

that the rate of warming increases

and it's quite clear, from two datasets,

not just satellite data

which everybody talks about,

but from weather ballons data

that you dont' see that effect.

In fact it looks like the surface

temperatures are warming slightly

more than the upper air temperatures:

that's a big difference!!

That data gives you a handle

on the fact that what you're seeing

is warming that probably is

not due to greenhouse gases.

That is, the observations do not

show any increase with the altitude.

In fact, most observations show a slight

decrease in the rate of warming with altitude.

So in that sense you can say that the

hypothesis of man-made global warming

is falsified by the evidence.

So the recent warming of

the Earth happened...

...in the wrong place and

at the wrong time.

Most of the warming took place

in the early part of the 20th century,

and ocurred mostly at

the Earth's surface,

the very opposite of what

should have happened...

according to the theory of

man-made global warming.

I am Al Gore, I used to be Vicepresident

of the United States of America...

Former Vicepresident Al Gore's

emotional film "An Inconvenient Truth"

...is regarded by many as the definite

popular presentation of the theory...

of the man-made global warming.

His argument rests on one all

important piece of evidence...

taken from icecore surveys in which

scientists drill deep into the ice

to look back into Earth's

climate history,

hundreds of thousands of years.

The first icecore survey took place

in Vostok, in the Antarctic:

what it found, as Al Gore

correctly points out,

...was a clear correlation

between CO2 and temperature.

We're going back in time

now 650.000 years...

Here's what the temperature

has been on our Earth.

Now one thing that comes and jumps

out at you is the data are fit together

(most ridiculous thing

I've ever heard)

The relationship is actually

very complicated

but there is one relationship

that is far more powerful

than all the others and it is this:

when there's more CO2 the

temperature gets warmer.

Al Gore says the relationship

between the temperature...

...and CO2 is complicated

but he doesn't say what

these complications are.

In fact, there was something

very important...

in the icecore data that

he failed to mention:

Professor Clark is a leading Arctic

paleoclimatologist who looks back

into the Earth's temperature record

tenths of millions of years.

When we look at the climate

on long scales

we're looking for

geological material...

that actually records climate.

If we were to take an ice sample

for example we use isotopes...

to reconstruct temperature but the

atmosphere that is imprisoned...

in that ice we liberate it and

then we look at the CO2 content.

Professor Clark and others

have indeed discovered,

as Al Gore says,

a link between CO2

and temperature.

But what al Gore doesn't say...

is that the link is the

wrong way round.

So here we're looking at the

icecore record from Vostok

and in the red we see temperature

going up from early time

to later time at a very key interval

when we came out of a glaciation.

And we see the temperature going up

and then we see the CO2 coming up.

CO2 lags behind that increase.

It's got a 800 year lag...

...so temperature is leading

CO2 by 800 years.

There have now been several

major icecore surveys,

everyone of them shows

the same thing:

the temperature rises or falls,

and then,

after a few hundred years,

CO2 follows.

So obviously, CO2 is not the

cause of that warming;

In fact we can say that the warming

produced the increase in CO2.

CO2 clearly cannot be causing

temperature changes,

it's a product of temperature.

it's following temperature

changes.

The icecore record goes

to the very heart...

...of the problem we have here.

They said:
"if the CO2 increases

in the atmosphere,

...as a greenhouse gas,

then the temperature will go up".

But the icecore record

shows exactly the opposite:

so the fundamental assumption,

the EMOs fundamental assumption

...of the whole theory

of climate change...

...due tu humans,

is shown to be wrong.

But how can it be that

higher temperatures lead...

to more CO2 in the atmosphere?

To understand this,

we must first restate...

the obvious point that CO2

is a natural gas...

...produced by all living things.

Few things annoy me more

than to hear people...

talking about CO2

as being apollutant:

you are made of CO2,

I'm made of CO2,

CO2 is how living things grow.

What's more, humans are not

the main source of CO2.

Humans produce a small fraction

in the single digits percentage-wise

of the CO2 that it is produced

in the atmosphere.

Volcanos produce more CO2 each year

than all the factories and cars and planes

and other sources of man-made

CO2 put together.

More still comes from

animals and bacteria,

which produce about a 150

gigatonnes of CO2 each year,

compared to a mere 6.5

gigatonnes from humans.

An even larger source of CO2

is dying vegetation,

from falling leaves for example

in the autumn.

But the biggest source of CO2

by far is the oceans.

Carl Wunsch is Professor

of oceanography at MIT.

He was also a Visiting Professor...

...in Oceanography

at Harvard University,

...and University College in London,

and a Senior Visiting Fellow...

in Mathematics and Physics

at the University of Cambridge.

He's the author of four major

textbooks on Oceanography.

The ocean is the major

reservoir into which CO2 goes...

...when it comes out

of the atmosphere.

or to, from which it is readmitted

to the atmosphere.

If you heat the surface of the

ocean it tends to emit CO2...

So similarly if you cool

the ocean surface,

...the ocean can dissolve

more CO2.

So the warmer the oceans,

the more CO2 they produce...

and the cooler they are,

the more the suck in.

But why is there a timelag

of hundreds of years...

between a change in temperature

and a change in the amount of CO2...

...going into or out of the sea?

The reason is that oceans

are so big and so deep...

they take literally hundreds

of years...

...to warm up and to cool down.

This timelag means the oceans

have what scientists call...

...a memory of temperature changes.

The ocean has a memory of past events,

running out as far as

ten thousand years,

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