We’ve been saying this for years.
First, no one and nothing lives at average global temperature — it is a meaningless metric. Second, as Climategate explicitly revealed, the 2°C target was simply pulled out of thin air and not based on any sort of science.
The media release is below.
Ditch the 2 warming goal
Human-induced stress on the global climate system should be monitored using an array of vital signs, rather than focusing on average global temperature, argue David Victor and Charles Kennel in a Nature Comment piece.
For nearly a decade, international efforts have been centred on the goal to cap global warming at 2°C above pre-industrial levels. The stalling of global average temperature rise over the past 16 years demonstrates that the 2°C target is not, in practice, a good milestone against which to set emissions-mitigation policies, explain Victor and Kennel. The goal is unachievable — current emissions trajectories will almost inevitably blow through it — and impractical, because individual governments and businesses can do little to influence it directly. Other indicators, such as ocean heat content, high-latitude temperatures or the atmospheric concentration of carbon dioxide and other greenhouse gases, might be better measures.
As work begins to draft an agreement ahead of the next year’s United Nations climate summit in Paris next year, the authors conclude that the 2°C goal should be abandoned and replaced with a new set of achievable targets.