Transcript Slide 1

The
sequence
of events
that
willoverseas
lead
us into
amight
new
Ice
Age
WALLY
HARRY
The
search
BRYDEN
BROECKER
was
on
For
from
toreaders
of
discover
England’s
Columbia
the
National
University
trigger
who
for
Oceanography
is
these
be
guru
sudden
unfamiliar
of is
Centre
climate
jolts.with
is
science.
unsure if
Athere
SPECTRE
ISthe
HAUNTING
theoretically
well-founded.
First
will
be
global
warming
. currents
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He believes
the
But
conveyor
most scientists
climate
slow-down
the
thought
change
great
is array
temporary
the
is triggered
oceans
of UKorpoliticians
never
by
indicative
thechanged.
great
who
of ocean
a pontificate
long-term
They
trend.
on . . . and
asthought
human
activity
creates
a
greenhouse
that
locks
us
into
rising
the
spectre
of
unemployment.
Twenty-five
ANGEL
and
colleagues
atsouth
the
oneROGER
“We’re
in A
particular:
not
they
sure
had
if the
things
ait steady-state
will
Gulf
shut
they
Stream.
down,
do
not
and
Itproposed
but
comprehend,
rises
went
we
are
on
nervous
of
before.
let
theme
equator,
about
Then
introduce
ourabsorbs
findings.”
you were
heat for bigger, heavier
space
sunshade
was
first
inas
1989.
"The
earlier
ideas
temperatures.
This
will,
in
the
first
instance,
lead
to
aMexico
wetter
world
million
people
without
work,
hundred
from
After
came
the
the
something
tropics
warm
waters
and
that
to
one
then
shocked
rise
such
flows
in
the
ineveryone;
around
England:
tropics
the
they
something
NIGEL
Gulf
divide,
ofLAWSON.
so
some
small
before
flows
it asouth
heading
and
University
of
Arizona
are
well-advanced
structures
that
would
have
needed
manufacture
and
launch
from
the
moon” says Roger Angel.
because
warm
winds
draw
more
moisture
from
the oceans.
The
across
some
might
flows
have
North
been
north.
Atlantic
overlooked
But
thethe
towards
division
– but
Greenland,
appears
formore
the
have
changed
ofwith
one
itman.
since
the light
heat
surveys
in
million
incarrying
work
that
keeps
them
still in thin so they could
"Ithe
wanted
to
sunshade
from
small
'flyers';
small,
and extremely
in developing
amake
space
sunshade
.Indian
.inspiration
.toto
be
Nigel
Lawson
was
Chancellor
of the
Exchequer
monsoon
rains
in
Asia
are
affected
by
the
Ocean
and
will
equivalent
1957,
1981
ofand
a million
1992.and
power
Bylaunched
measuring
stations
.the
. .Earth
enabling
amount
ofuswater
in Britain
flowing
to swim
south
the When they reached L-1,
be
assembled
from
stacks
of the
a million
at ain
time.
poverty
as
politicians
flounder
and
LLOYD
KEIGWIN
under
works
Margaret
from
the
Thatcher
Woods
Hole
andin
Oceanographic
he
refutes
claims
become
more
intense.
Rivers
will
then
burst
their
banks
and
deployed
if our
planet
is
headed
for
seas
Harry
at
Bryden
the
same
calculated
latitude
that
as
polar
the
amount
bears
in
of
Alaska.
water
flowing
As
the
north
warm
has
waters
fallen
flow
by
they
would concerning
bemud
dealt
off
the stack
into
a the
cloud.
to assemble in space."
Institute,
samples
global
taken
warming.
from
He’s
ocean
a There's
prudent
floornothing
man
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who
floods
on
aexamining
biblical
scale
will
follow.
Over
Asia’s
northerly
economists
search
vain
disaster.
Roger
Angel’s
collaborators
are
across
30%.
The
the
fact
North
that
Atlantic
the
Atlantic
they
give
conveyor
up moisture
is slowing
to the
is in
beyond
warm
winds
doubt.
above,
It But
will what
be a very long time before the world can manage without fossil fuels. Meanwhile,
some guys
have
all
wouldn’t
the
fun.waste
Mud
money
cores,
like
solving
ice
cores,
aa
problem
tellThe
us
that doesn’t
landmass
the
threat
to
humankind
will
unfold
more
slowly.
The
lightweight
flyers
would
be
made
from
transparent
film
pierced
with holes.
Each
which
is
really
then
troubling
falls asscientists
rain over
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the possible
But the
effect
salt of
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a complete
behind and
shutthe
down.
the
Massachusetts
Institute
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rainforests
that we
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on tobe
remove CO2 from the atmosphere are being felled at
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if the
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the weightrate
of afor
large
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become
progressively
heavier
and
colder
they
journey
towards
an
ever
increasing
agriculture
and for their raw materials.
And
across
five
continents
the
pace
of
the
University
of
Arizona’s
TheTechnology,
from
last
forams,
conveyor
creatures
not
shutdown
waste
that
feed
time
caused
arguing
on
nutrients
a
temperature
with
sinking
him.
But
drop
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of
between
sea
wrong
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and
discharge
it
into
the
sinking
zone
.
.
.
twenty
times
more
fresh
butterfly.
They
would
use "MEMS"
technology
mirrors
as tiny sails
that tilt to hold the flyer’s
Greenland.
By the
time
the waters
reach the
landmass
of Greenland
they’ve
population
growth
will
mean
another
five
10°C
bed.
To
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make
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during
and
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time
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Great
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Age.
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There
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also
thehave
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Steward
Observatory,
the
NASA
water
than
thebecome
melt
water
from
Greenland.
But
rising
rainfall
over
The
flyer's
transparency
and
steering
mechanism
prevent
cooled
and
heavy
with
salt. Colder
and
heavier,
the
waters
then sink
PROFESSOR
KLAUS LACKNER, a geo-physicist, has developed a synthetic tree that
slowing
so
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shells
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conveyor
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When
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itas
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The
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However,
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total
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its from
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With
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pull CO2 out of the air as it flows over their leaves. A real
1300
flowing
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1850
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and
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get
swept
temperatures
past
the
forams,
enough
so
in
their
England
shells
to
are
freeze
the
trigger
that
brings
Atlantic
to awould
halt
this
century.
and
conventional
rocket
launching
be too
expensive.
But
electromagnetic
space
launches
and
energy
by
the
end
of the
thisocean
century
so
thebe
way,
coldthe
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content
then
with
turn
helping
around
and
to
destroy
flow
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by
floor
in its leaves
to the
launch
trillions
of conveyor
small
free-flying
tree
spreads
to
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the sunshine for photosynthesis, but in his artificial tree
Thames
poor
incould
nutrients;
at London.
but
Whilst
ifcost
the down
conveyor
some to
climatologists
is ‘off’
or flowing
think
that
slowly
global
the warming
will
bringinto
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$20
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The
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deployed
by electromagnetic
a southerly
direction,
infecting
making
it with
way
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for
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nonsense,
overhead.
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Within
the lifetime
of
our
grandchildren
it seems
probable
that
they
tightly-packed
to collect 90,000 tonnes of CO2 each year. The CO2 is
that
even
trebling
of
global
production
an
orbit
aligned
with
the
give‘spacecraft’
nutrients
Britain
sink
a
weather
to
the
sea
pattern
bed
and
similar
are
to
absorbed
the
South
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shells.
within
By
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years,
launchers
throwing
up destroy
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years and
us from
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wouldAtnow
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will
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million
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others
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believe
their
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the
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isshould
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tell
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ifall
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It is not
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isthe
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do
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not
hope
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ator
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© 2009 National Academy of Sciences.
events.
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aseemed
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