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

[Graham]

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

http://350.org/about/science

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

http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003307/STILLco2.0120.tif

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

https://www.facebook.com/photo.php?fbid=4317912638531&set=a.4284457762180.2161589.1608467399

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

Graham