Watts UP With That? (Antony Watts) / Willis Eschenbach
Planet-Sized Experiments - we've already done the 2°C test
Berkeley Earth average European temperature, 1743 - 2013
Red/yellow line is an 8-year Gaussian average.
Horizontal red and blue lines are 2°C apart.
People often say that we're heading into the unknown with regards
to CO2 and the planet.
They say we can't know, for example, what a 2°C warming will do because
we can't do the experiment.
This is seen as important because
for unknown reasons, people have
battened on to "2°C" as being the scary temperature rise
that we're told we have to avoid at all costs.
But actually, as it turns out, we have already done the experiment.
Below I show the Berkeley Earth average surface temperature record for
Europe is a good location to analyze, because some of the longest
continuous temperature records are from Europe.
In addition, there are a lot of stations in Europe that have been
taking record for a long time.
This gives us lots of good data.
Average annual climate-related (blue line)
and non-climate-related (red line) deaths in natural disasters
Results of the UN "My World" poll. Further analytic data