Back in land of sense, once a
15K global average temperature anomaly arises through natural variability then there is such a very strong feedback making reaching a 20K anomaly sufficiently unlikely that I think we should ignore it in same way as possibility of earth jumping into centre of sun.
*** The table below shows
the global average temperature anomalies for the last 20 years (2014 only includes data from Jan to Oct, so may change).
The period of increased warming from 1987 to 1997 loosely coincided with the divergence of
the global average temperature anomalies over land, which are derived from observation station recordings, and the global average anomalies in sea surface temperatures.
The increase in
the global average temperature anomaly and the divergence of land and sea surface temperatures also coincided with two significant changes in global average cloud cover.
With three - quarters of 2013 already in the books, we can make a pretty good guess as to what
the global average temperature anomaly is going to be at years» end, and perform the same analysis we described above, but ending in the year 2013 instead of 2012.
«Statistical models that make no sense in terms of calculating hemispheric or
global average temperature anomalies» — got a cite for that?