A blog of many items relating to societal change by a certified Passivhaus design/builder with 25 years experience in low energy and alternative "green" construction. Adam has designed and built earth sheltered, ferro cement, ICF (insulated concrete forms), SIP (structural insulated panels), timberframe, recycled construction incorporating solar thermal, radiant heat & photovoltaic (PV), as well as standard construction.
Of course the big question is whehter this sort of linearity will hold up over time....my bet is that it doesn't.
ReplyDeleteIn a rather obscure discussion at Real Climate http://www.realclimate.org/index.php/archives/2009/08/ups-and-downs-of-sea-level-projections/#more-969
they offer what I'd call the understatement of the century: "...And there are arguments (e.g. by Jim Hansen) that over time the ice loss may be faster than the linear approach suggests, once the ice gets wet and soft and starts sliding. So ultimately we do not know how much longer the system will behave in an approximately linear fashion..."
If the Pine Island glacier melt acceleration is any signal we are about to break out of linearity big time....
http://climateprogress.org/2009/08/13/west-antarctic-ice-sheet-pine-island-glacier-thinning-faster-sea-level-rise/