"Keema's Nan" wrote in message
news.com...
On 16 Jun 2019, Rod Speed wrote
(in article ):
"Keema's Nan" wrote in message
news.com...
On 15 Jun 2019, abelard wrote
(in ):
On Sat, 15 Jun 2019 17:24:32 +0100, Keema's Nan
wrote:
On 15 Jun 2019, abelard wrote
(in ):
On Sat, 15 Jun 2019 08:45:48 +0100, Keema's Nan
wrote:
Methane is 80 (yes; eighty) times more effective than CO2 as a
greenhouse
gas, so when all that methane trapped under the frozen tundra
starts to
bubble to the surface as the tundra melts, humans are well and
truly
****ed.
your numbers are dodgy
No my numbers are not dodgy.
please don't argue
there is also far more co2 than methane involved
what is 'run away gw?
It is what happened on Venus.
But has never happened on earth, even when the atmospheric
CO2 levels where much higher than they are now.
Is that the best you can do?
Its what matters.
It hasnt happened yet, so it cant happen....
It didnt happen here when CO2 levels were much higher than
they are now, so there is no point in hyperventilating now.
...there will always be an equilibrium point...
Prove it.
Thats what has always happened on earth.
No proof I see. Killfile for another troll.
Just another ****wit child, putting its fingers in its ears,
closing its eyes and chanting 'nyah, nyah, can't hear ya'
Good luck with your €śfingers-crossed€ť science.
You never could bull**** your way out of a wet paper bag, gutless.
all numbers are meaningless without context
one equilibrium possibility is no humans
look at the tables here
https://www.abelard.org/briefings/global_warming.php
co2 stays in the atmosphere god knows how long...
methane for about 14 years...
Yes methanes effectiveness is much shorter than CO2, but if the
planets
atmosphere is on a knife-edge between equilibrium and runaway
global
warming,
the last thing it will want is a rapid short term boost to the
greenhouse
effect.
Remember that the first threat, with rising sea temperatures, is
the
expansion of the water (and the oceans have lots of water). A 10
metre
rise
in sea levels is going to inundate every coastal city on the planet
and
much
of the fertile crop growing lands.
Remember also that methane breaks down (oxidises for the pedantic)
into
various forms, the main ones being CO2 and Water Vapour which are
both
efficient greenhouse gases. So, even though the methane may not
last
more
than 10-14 years, the elements which it turns into will be there
much
longer.
a measure used is, effects after 100 years
methane thus has a much worse short term effect
but attenuates much more rapidly than co2...
See above.