Global Atmosphere CO2 Hits 400 p.p.m.-same as a million years ago

Reports that the world's carbon dioxide content reached its highest level in a million years-400 parts per million, along with reports on anticipated mass extinctions of most large wild land herbivores and select dependent carnivores makes us think that Reagan's popular phrase;you ain't seen nothin yet, probably will apply to global warming too. As the hominids are still driving their fossil fuel vehicles around with 'what me worry' smiles, maybe one ought not be concerned until the forests become deserts, the seas acidic and politicians develop ethical ecospheric economic concepts.

http://www.smh.com.au/environment/climate-change/global-co2-in-atmosphere-highest-in-a-million-years-noaa-says-20150506-ggvufx.htm