authfriend wrote: > --- In [email protected], Bhairitu <[EMAIL PROTECTED]> wrote: > >> jim_flanegin wrote: >> >>> --- In [email protected], "authfriend" <jstein@> >>> wrote: >>> >>> >>>> --- In [email protected], Sal Sunshine >>>> > <salsunshine@> > >>>> wrote: >>>> >>>> >>>>> On Oct 17, 2006, at 1:01 AM, authfriend wrote: >>>>> >>>>> >>>>> >>>>>> Chart of the length of time it would take >>>>>> for all traces of human civilization to >>>>>> disappear if we all died tomorrow: >>>>>> >>>>>> http://www.treehugger.com/files/doom_1.php >>>>>> >>>>>> >>>>> Fascinating. I wonder, though, when they say 1,000 years for >>>>> >>>>> >>>> stone, >>>> >>>> >>>>> brick and concrete buildings gone, do they mean turned to >>>>> > rubble > >>>>> >>>>> >>> or >>> >>> >>>>> completely disappeared? And how would that square with >>>>> >>>>> >>> buildings >>> >>> >>>>> that have survived for millennia, like the Coliseum and the >>>>> >>>>> >>>> pyramids? >>>> >>>> Dunno, I was wondering that myself. I think they >>>> mean turned to rubble, but buildings have survived as >>>> buildings far longer than that, as you say. Maybe >>>> modern buildings wouldn't, though. >>>> >>>> What gets me about the chart is how quickly the >>>> earth's ecosystem would repair itself after human >>>> beings were gone. >>>> >>>> >>> That chart gave me the creeps! It has a very passive-agressive >>> feel to it, sort of a big F-you to humanity...not nice at all. >>> OTOH, sure let's continue to try to be responsible energy >>> producers/consumers... >>> >> It might also suggest that we can no longer see remains of >> civilizations that may have existed on the planet over 50,000 >> years ago. >> > > Yowzah. > > And of > >> course if the Sun spits at us humanity will all be toast. >> > > There are a whole lot of ways we could disappear > in the blink of an eye that we have absolutely > zero control over: being hit by a good-sized > asteroid, the "supervolcano" under Yellowstone > erupting and burying us in ash, for example. > > Given our vulnerability, we might as well do what > we can to avoid killing *ourselves* off. Yup.
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