i asked the top scientists and there's
several times do we really have to
get down to near zero can't we
just cut it in half or quarter
and the answer is that until we
get your to zero the temperature will
continue to rise and so that's that's
a big challenge it's very different than
saying in a were twelve foot high
truck point
get under a ten foot bridge and
we can just sort of squeeze under
this is something that has to get
to zero
now we put out a lot of
carbon dioxide every year are over twenty
six billion tons of her each american
it's about twenty tons of for people
in poor countries it's less than one
time to an average about five tons
for everyone on the planet and somehow
we have to make changes that will
bring
that down to zero
it's been constantly going up it's only
various economic changes that have even flattened
at all so we have to go
from rapidly rising to fall in and
falling all the way to zero this
equation as for factors a little bit
of multiplication so you got a thing
on the left c o two want
to get to zero
and that's going to be based on
the number of people the services each
person juicy not average the energy on
average free service and the c o
two been put out a per unit
of energy so let's look at each
one of these and see how we
can get this down to zero probably
one of
these numbers is going to have to
get pretty near to zero
that's back from high school algebra but
let's let's take a look
first we got population of the world
today has six point eight billion people
that's headed up to about nine billion
now if we do a really great
job on new vaccines healthcare reproductive health
services we could lower that by perhaps
ten or fifteen percent but there we
see an increase of about one point
three
the second factor is the services we
use