Who is most effective at showing how empty, how misleading, how utterly nonsensical are the arguments from global warming deniers? Perhaps — of course this is just my opinion — the answer to the question “Who is the deniers’ worst enemy?” is one of their own: Christopher Monckton.
Why? Because he’s still writing stuff like this blog post at WUWT (where else?). A recent video demolished the claim that “there’s been no warming for 18 years” because “the satellite data are the best,” and did such an effective job of it that Monckton just had to respond.
If you enjoy refuting nonsense (who doesn’t?), Monckton makes it so easy. Candy from a baby. Like his point #15 — about sea ice. Here’s what he has to say:
15. that Arctic sea ice is declining, though Antarctic sea ice has been on a rising trend and reached a satellite-era record in early 2015, and though the decline in Arctic sea ice is chiefly only in a few late-summer weeks and is a small fraction of the seasonal variation in sea-ice extent, so that neither the extent nor the trend of global sea ice (from the University of Illinois) shows much change throughout the satellite era
Here’s the graph he shows, to go along with it:
He didn’t make the graph, he got it from the Cryosphere Today website (from the good people at UIUC, the University of Illinois at Urbana-Champaign).
I understand why the folks at Cryosphere Today chose the plotting scale they did. They have a lot of graphs on their website so space is limited, and they wanted to show both sea ice area and its anomaly on the same graph. To make them fit, the scale had to be chosen which makes the anomaly graph too compressed to see what’s really going on. Like this:
I also understand why Monckton went with this graph: because the scale makes the anomaly graph too compressed to see what’s really going on. Which is this:
It’s obvious that Monckton’s claim is false. Global sea ice shows much change, as in, over a million square kilometers. And by the way, Chris, UIUC didn’t graph sea ice extent, they graphed sea ice area.
But the really weird thing about Monckton’s claims is the statement, when referring to Arctic sea ice, that “… the decline in Arctic sea ice is chiefly only in a few late-summer weeks…” Really?
Let’s have a look. I computed the trend is Arctic sea ice, not overall, but separately for each month of the year. Here’s the result:
The trend is negative — downward — for every month of the year. It’s statistically significant for every month of the year. Where Monckton got the idea “only in a few late-summer weeks” is anybody’s guess.
Just to show an example of what’s happening other than “only in a few late-summer weeks,” here’s Arctic sea ice during January:
I could have used any month of the year, and it would show the same thing: Monckton is wrong.
Yes, refuting Monckton really is like taking candy from a baby. And that’s just his talk about sea ice! He doesn’t just make it easy, he’s so generous, giving so much to refute.
It’s kind of sad, actually. You’d think that the deniers would wake up to the fact that this guy isn’t helping. He’s embarrassing.
Then again, maybe he’s not that different from the rest of the deniers.
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