S
sherbert767
Guest
mitigate (in a 20 yrs or so?)? Thru forest growth and expansion, etc...
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
If climate change happens rapidly, can newly warmed areas absorb enough CO2 to
J
John W
Guest
Well let's take a look at what a little temperature rise did in the forests of BC Canada. A mild winter failed to kill off the Pine Beetle population as normally would be the case resulting in a massive die off of pine trees during the following summer, the end result is that the decomposing trees are now releasing more CO2 than five years of Canadian automobile emissions. There's nothing to say that warmth would bring forest growth and expansion.
L
linlyons
Guest
probably not. consider this chart.
http://solar-center.stanford.edu/sun-on-earth/600px-Temp-sunspot-co2.svg.png <== sunspots compared to CO2 and temperature.
note that temp and CO2 have been increasing for 150 years.
even with warming, CO2 levels have increasing more sharply.
it does not appear that there will be sufficient increased growth to absorb the extra CO2.
worse, when water, as in the oceans, warms, then it holds less CO2.
that will cause the CO2 in the atmosphere to increase, as it's expelled from the oceans.
http://solar-center.stanford.edu/sun-on-earth/600px-Temp-sunspot-co2.svg.png <== sunspots compared to CO2 and temperature.
note that temp and CO2 have been increasing for 150 years.
even with warming, CO2 levels have increasing more sharply.
it does not appear that there will be sufficient increased growth to absorb the extra CO2.
worse, when water, as in the oceans, warms, then it holds less CO2.
that will cause the CO2 in the atmosphere to increase, as it's expelled from the oceans.
eclecticcrab
New member
Hardly. First, takes centuries for forests to grow. With human help-maybe a century. Not20 years.
And we will b e very dead if that happens anyway. Why? The regions you are talking about are the permafrost zone. Ground permanently frozen. If that melts, the massive amounts of methane contained in the ground will be released.Methane is 20 times as effective as CO2 as a greenhouse gas. It does break down in about 10 years--into CO2. This has happened in Earth's geological history at least once (millions of years ago). It wiped out at least one half the live on the planet.
So if those regions "warm up"--you won't be planting trees in the far North. You'll be too busy trying to survive the collapse of civilization. If you live long enough--which isn't likely.
And we will b e very dead if that happens anyway. Why? The regions you are talking about are the permafrost zone. Ground permanently frozen. If that melts, the massive amounts of methane contained in the ground will be released.Methane is 20 times as effective as CO2 as a greenhouse gas. It does break down in about 10 years--into CO2. This has happened in Earth's geological history at least once (millions of years ago). It wiped out at least one half the live on the planet.
So if those regions "warm up"--you won't be planting trees in the far North. You'll be too busy trying to survive the collapse of civilization. If you live long enough--which isn't likely.