Well, obviously enough detecting hurricanes isn't too hard. But the question exercising many people minds is *attribution*: has GW lead to an increase in hurricanes? Attributing individual hurricanes is difficult/impossible (the line taken by RC); we're talking about over all trends & stats.
JA (when not blogging about pet food) has a nice article about attribution here, though he means attribution in general. And there is a nice article about an interview with Judith Curry (top quote: William Gray is one of some "hurricane scientists who don’t know a lot about global climate").
But the point I wanted to make is that failure to attribute to GW does *not* amount to an attribution to anything else: natural cycles, etc etc. And failing to determine a human signal is not the same thing as ruling out a human signal (BTW, I'm not actually asserting that this "failure" has occurred). Which brings me to RPs beastly rough post Slouching Toward Scientific McCarthyism (also read the comments). He quotes "NOAA attributes this increased activity to natural occurring cycles in tropical climate patterns near the equator" (my emphasis). RP believes that disagreeing with "The increased activity since 1995 is due to natural fluctuations and cycles of hurricane activity" (again, my emphasis) is bizarre, since the statement is "fully supportable by peer-reviewed science". But is it? For it to have been so, there would have to be a proper attribution to natural causes. If there is any such papers, what are they?
[Minor updates: at least one cultured person has complained that my calling RPs post "beastly rough" was a bit over the top. They have missed the allusion, which I think RP originally intended in his title, to "Slouching to Bethlehem": to quote the second stanza:
A shape with lion body and the head of a man,
A gaze blank and pitiless as the sun,
Is moving its slow thighs, while all about it
Reel shadows of the indignant desert birds.
The darkness drops again; but now I know
That twenty centuries of stony sleep
were vexed to nightmare by a rocking cradle,
And what rough beast, its hour come round at last,
Slouches towards Bethlehem to be born?
I like that; and that was the bit I remembered. But it starts "Turning and turning in the widening gyre / The falcon cannot hear the falconer / Things fall apart; the centre cannot hold;" which fits a hurricanes discussion quite nicely :-)
And secondly, my somewhat flippant "detecting hurricanes is easy enough" is not really right; there are problems with detection in remote regions in the early days.]