[sclug] Graphs from last nights (off topic) CO2

Graham cascade.information at gmail.com
Thu Sep 12 07:44:16 UTC 2013

Graphs from last nights (off topic) CO2

275 ppm = historical normal
350 ppm = recommended maximum
400 ppm = current level
 20 ppm = rising by 20 / decade


The long term graph (from trapped air in ice deposits)
shows 180 - 280 range over 0.4 Bn years


The short term graph, shows an exponential addition
emerging 250 years ago (industrial revolution)


Fortunately, this is not a problem for Australia,
their new government needs proof that CO2 matters,
and until then are climate change sceptics


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