SUMMARY:
Many media sources
claim global warming
is making hurricanes
more frequent and
more devastating.
They have no data
to back up that
conclusion,
because
the conclusion
is wrong.
DETAILS:
"Hurricane" is the name
for a tropical cyclone
that happens to be
in the North Atlantic Ocean
or North Pacific Ocean.
Weather satellite
coverage became
global in 1970.
Ryan Maue has a PhD
in meteorology from
Florida State University
( where tropical cyclones are a specialty ).
Maue developed
an objective history
of cyclones / hurricanes
since global satellite
coverage began.
He multiplies
their wind speed
by the length of time
that those winds blow,
to estimate the power
of individual storms.
Adding all the world’s
storms up every year
since 1970, results in
The Accumulated Cyclone
Since 1970, temperatures
fell a little until about 1977.
Then temperatures rose
+0.5 degrees C. to the
early 2000s.
So, if global warming
is actually making
hurricanes worse,
then Maue’s ACE Index
should show that.
But there is no trend
in the global ACE Index,
that correlates with
global average
surface temperature
changes.
The ACE Index is
a global measure.
For Atlantic Ocean
hurricanes near the U.S.,
the National Oceanic and
Atmospheric Administration’s
Geophysical Fluid Dynamics
Laboratory in Princeton, said
this, in an August 2019
publication:
“In the Atlantic, it is
premature to conclude
with high confidence
that human activities
— and particularly
greenhouse gas emissions
that cause global warming
– have already had
a detectable impact
on hurricane activity."