permaculture

["John D'hondt" <dhondt@eircom.net>]

> > > New Research Shows Global Warming Speeding Up | Common Dreams
> > > http://www.commondreams.org/headline/2013/03/28-1
> >
> > And we have seen nothing yet. Once all the ice on the North Pole 
> > disappears
> > is when things will really speed up and another positive feedback kicks 
> > in.
>
> And the release of methane from undersea hydrates and CO2 from thawed
> tundra.

That has not even started yet really. It takes about as much energy to melt 
ice as it does to warm up seawater by one degree C. Only when the ice is 
gone you'll see the warming start.
Put some ice cubes in a glass of your favorite drink and swirl it around 
from time to time. As long as there is ice at all the temperature stays low. 
Once the ice is gone the warming up starts.
And also all that ice was reflecting a lot of the solar energy straight back 
into space when the ice is gone more energy will be captured.
And then we will see methane bubbling or spouting up. Trillions of tons of 
it.
All positive feedbacks.
John