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Science Forum Index » Geology - Meteorology Forum » When do we all die?(I NEED AN ANSWER PLEASE)
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| Robert Blass |
 Posted: Sat Apr 12, 2008 5:19 pm |
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Guest
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I was wondering when we all die from this Global Warming?
It's suppose to kill humans off the planet so does anyone have an
actual date or even a Year that this will happen?
If you can project the temperature of the Earth in 50 years then you
should be able to predict when Global Warming will cause all humans to
die-off.
Thanks, I await your numbers. |
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| Martin Brown |
| Posted: Sun Apr 13, 2008 11:12 pm |
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On Apr 12, 11:19 pm, Robert Blass <bl...@messenger.xcx> wrote:
Quote: I was wondering when we all die from this Global Warming?
We don't. Although a lot of people will starve to death when crops
fail near the equator, temperate and higher latitudes will remain
habitable for a very long time. It is starting to happen already as
the biofuels from corn fiasco is taking grain from feeding poor people
and putting it into US gas tanks (with little or no improvement in
overall CO2 emissions). It makes the corn lobby guys a lot richer by
driving up prices though.
Quote:
It's suppose to kill humans off the planet so does anyone have an
actual date or even a Year that this will happen?
It will happen for certain when the Earth can no longer support liquid
water on its surface. That time is a very long way off. Life gets very
uncomfortable outside when ambient temperature is above our body
temperature. But we could all turn troglodyte (at least the ones with
enough money) - thats how some Australian opal miners live in some of
the most inhospitable terrain like Coober Pedy in S Australia.
And the biosphere will still work OK with or without us. Some plant
species become more efficient at higher temperatures and CO2
concentrations provided that they have sufficent access to water
(optimum temperature thought to be around 50C). Much beyond that and
key enzymes and proteins start to get cooked.
If you are absolutely desparate for an answer it has been modelled
(for the purposes of helping to analyse searches for life in the
habitable zone around around other stars) various papers are in the
online index of which the following comes closest to answering your
question, but it is pay per view (about $30):
http://adsabs.harvard.edu/abs/2000P%26SS...48.1099F
Part of the problem with global warming is that it happens on a
timescale that most politicians find impossible to comprehend (but
then they have the attention span of goldfish). They are only
concerned with the next election.
Main problems will be low lying highly populous areas like London,
Bangladesh and New York and rising sea levels.
Quote:
If you can project the temperature of the Earth in 50 years then you
should be able to predict when Global Warming will cause all humans to
die-off.
Thanks, I await your numbers.
A hard upper bound is the remaining life of the sun before it turns
into a red giant. You will be able to smelt lead on the Earths surface
in the heat of the midday sun in about 4-5 billion years time. Long
term prospects for the habitable zone in our solar system are
discussed in:
http://www.astrobio.net/news/article912.html
(free access)
Regards,
Martin Brown |
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| Martin Brown |
| Posted: Sun Apr 13, 2008 11:12 pm |
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Guest
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On Apr 12, 11:19 pm, Robert Blass <bl...@messenger.xcx> wrote:
Quote: I was wondering when we all die from this Global Warming?
We don't. Although a lot of people will starve to death when crops
fail near the equator, temperate and higher latitudes will remain
habitable for a very long time. It is starting to happen already as
the biofuels from corn fiasco is taking grain from feeding poor people
and putting it into US gas tanks (with little or no improvement in
overall CO2 emissions). It makes the corn lobby guys a lot richer by
driving up prices though.
Quote:
It's suppose to kill humans off the planet so does anyone have an
actual date or even a Year that this will happen?
It will happen for certain when the Earth can no longer support liquid
water on its surface. That time is a very long way off. Life gets very
uncomfortable outside when ambient temperature is above our body
temperature. But we could all turn troglodyte (at least the ones with
enough money) - thats how some Australian opal miners live in some of
the most inhospitable terrain like Coober Pedy in S Australia.
And the biosphere will still work OK with or without us. Some plant
species become more efficient at higher temperatures and CO2
concentrations provided that they have sufficent access to water
(optimum temperature thought to be around 50C). Much beyond that and
key enzymes and proteins start to get cooked.
If you are absolutely desparate for an answer it has been modelled
(for the purposes of helping to analyse searches for life in the
habitable zone around around other stars) various papers are in the
online index of which the following comes closest to answering your
question, but it is pay per view (about $30):
http://adsabs.harvard.edu/abs/2000P%26SS...48.1099F
Part of the problem with global warming is that it happens on a
timescale that most politicians find impossible to comprehend (but
then they have the attention span of goldfish). They are only
concerned with the next election.
Main problems will be low lying highly populous areas like London,
Bangladesh and New York and rising sea levels.
Quote:
If you can project the temperature of the Earth in 50 years then you
should be able to predict when Global Warming will cause all humans to
die-off.
Thanks, I await your numbers.
A hard upper bound is the remaining life of the sun before it turns
into a red giant. You will be able to smelt lead on the Earths surface
in the heat of the midday sun in about 4-5 billion years time. Long
term prospects for the habitable zone in our solar system are
discussed in:
http://www.astrobio.net/news/article912.html
(free access)
Regards,
Martin Brown |
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| Martin Brown |
| Posted: Sun Apr 13, 2008 11:15 pm |
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Guest
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On Apr 12, 11:19 pm, Robert Blass <bl...@messenger.xcx> wrote:
Quote: I was wondering when we all die from this Global Warming?
We don't. Although a lot of people will starve to death when crops
fail near the equator, temperate and higher latitudes will remain
habitable for a very long time. It is starting to happen already as
the biofuels from corn fiasco is taking grain from feeding poor people
and putting it into US gas tanks (with little or no improvement in
overall CO2 emissions). It makes the corn lobby guys a lot richer by
driving up prices though.
Quote:
It's suppose to kill humans off the planet so does anyone have an
actual date or even a Year that this will happen?
It will happen for certain when the Earth can no longer support liquid
water on its surface. That time is a very long way off. Life gets very
uncomfortable outside when ambient temperature is above our body
temperature. But we could all turn troglodyte (at least the ones with
enough money) - thats how some Australian opal miners live in some of
the most inhospitable terrain like Coober Pedy in S Australia.
And the biosphere will still work OK with or without us. Some plant
species become more efficient at higher temperatures and CO2
concentrations provided that they have sufficent access to water
(optimum temperature thought to be around 50C). Much beyond that and
key enzymes and proteins start to get cooked.
If you are absolutely desparate for an answer it has been modelled
(for the purposes of helping to analyse searches for life in the
habitable zone around around other stars) various papers are in the
online index of which the following comes closest to answering your
question, but it is pay per view (about $30):
http://adsabs.harvard.edu/abs/2000P%26SS...48.1099F
Part of the problem with global warming is that it happens on a
timescale that most politicians find impossible to comprehend (but
then they have the attention span of goldfish). They are only
concerned with the next election.
Main problems will be low lying highly populous areas like London,
Bangladesh and New York and rising sea levels.
Quote:
If you can project the temperature of the Earth in 50 years then you
should be able to predict when Global Warming will cause all humans to
die-off.
Thanks, I await your numbers.
A hard upper bound is the remaining life of the sun before it turns
into a red giant. You will be able to smelt lead on the Earths surface
in the heat of the midday sun in about 4-5 billion years time. Long
term prospects for the habitable zone in our solar system are
discussed in:
http://www.astrobio.net/news/article912.html
(free access)
Regards,
Martin Brown
(Googles posting is incredibly unreliable again tpday so apologies if
multiple copies appear)
(Why are they so good at posting spam, and so lousy at posting genuine
Usenet posts?) |
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| Rodney Blackall |
| Posted: Mon Apr 14, 2008 5:20 pm |
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Guest
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In article
<6601d28c-b876-4e72-aede-282eaf8791f8@b5g2000pri.googlegroups.com>,
Martin Brown <|||newspam|||@nezumi.demon.co.uk> wrote:
Quote: On Apr 12, 11:19 pm, Robert Blass <bl...@messenger.xcx> wrote:
I was wondering when we all die from this Global Warming?
Since some of the important variables are due to human activity (like
breeding), and humans are not normally predictable, there is no answer to
your question.
Anyway, something else may do for us before the climate - supervolcano, big
space rock, nasty flu - so I should not worry!
--
Rodney Blackall (retired meteorologist)(BSc, FRMetS, MRI)
Buckingham, ENGLAND
Using Acorn SA-RPC, OS 4.02 with ANT INS and Pluto 3.03j |
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