More and more scientists warn that the world could
see global average temperatures rise 6 °C by 2100.
That is to say, let's say there is no super volcano, or no massive aerosol outburst, and we don't
see global average temperatures rise (they've stalled for quite a while now already).
The fact is that if we can't greatly reduce fossil fuel use by the 2030 - 2040 range, by 2075 be will
see a global average temperature rise of 3.5 to 4.0 degrees Celsius, which is also just about the time frame for world phosphate supplies to enter critical shortages that will eventually cut crop yields in half and require twice as much land and water to grow the same yield as previously.
Not exact matches
One of the planet's hotspots has been the outsized warming in the Arctic, which is
seeing a
temperature rise double that of the
global average.
By the end of this century, according to the new research, some «megapolitan» regions of the U.S. could
see local
average temperatures rise by as much as 3 degrees Celsius, in addition to whatever
global warming may do.
However, at the increased levels
seen since the Industrial Revolution (roughly 275 ppm then, 400 ppm now; Figure 2 - 1), greenhouse gases are contributing to the rapid
rise of our
global average temperatures by trapping more heat, often referred to as human - caused climate change.
Those extremes will come about more slowly than the
rise of mean
temperature, but I have
seen zero models that suggests a continued
rise of
global average with no
rise of
global high.
Well, apart from the
global average temperature rising... It is not often you
see such pure flat - earthist denial, even on anti-scientific denialist blogs like this.
[DC: I
see no quote, just a mistaken paraphrase from a blogger: «Latif found the results would bring the remorseless
rise in
average global temperatures to an abrupt halt.»
In the real world it has not been
seen to be actually happening because as CO2 levels have continued to
rise throughout the last 17 years,
global average temperatures have remained flat.
But when climate scientists looked at a graph of the
rise of
temperatures in the last 60 years, they
saw — or thought they
saw — a distinct drop in the rate of increase in
global average temperatures in the last 15 years.