Inconvenient CO2 Fact

. . IPCC published reports acknowledge that the effective temperature increase caused by growing concentrations of CO2 in the atmosphere radically diminishes with increasing concentrations. This information has been presented in the IPCC reports. It is well disguised for any lay reader. It is a crucial fact not acknowledged in the IPCC summary for Policy Makers.
. . The rapid logarithmic diminution effect is an inconvenient fact for Global Warming advocates and alarmists, nonetheless it is well understood within the climate science community.
It is likely that any current global warming, if continuing and increased CO2 is:

§ largely a natural process

§ within normal limits

§ probably beneficial up to about a further 2.0°C+.

It could be not be influenced by any remedial decarbonisation action, however drastic, taken by a minority of nations.
http://wattsupwiththat.com/2014/08/10/the-diminishing-influence-of-increasing-carbon-dioxide-on-temperature/#more-114325