With current high levels of pollution, the human body is now producing more free radicals than it should produce naturally. (fitness-baron.com)
Would it be advisable to put all the money in a balance fund at current high levels? (relakhs.com)
In any case, again, figure 3 shows that if we stop all emissions now (and yes, Jim, that means completely stop emitting any more CO2, not just stabilize the rate we are emitting at now, unless I'm missing something), with a climate sensitivity of 3 degrees C we will see atmospheric CO2 levels remain at current high levels for centuries. (realclimate.org)