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Showing posts with label Svetlana Jevrejeva. Show all posts
Showing posts with label Svetlana Jevrejeva. Show all posts

Saturday, August 29, 2015

Satellites rule in deniersville, except when sea levels are rising

Sou | 4:49 PM Go to the first of 11 comments. Add a comment
Science deniers at WUWT are a funny lot. Their sole purpose in visiting denier blogs seems to be to sing the refrain "it's not happening", with the occasional faint chorus of "if it is it's not bad". WUWT deniers in the main haven't got quite as far as "if it is bad, there's nothing we can do about it".

Some of Anthony Watts' guest articles are good illustrations of that. There was a "guest essay" by David Middleton  yesterday (archived here) about a press release on the NASA website about how quickly sea levels may rise.  The press release was consistent with other recent estimates that seas will probably have risen by a metre or more by the end of this century or early the next, particularly if we stay on our current emissions trajectory (and maybe even if we don't).

David Middleton, who you might recall thinks all lizards are the same, wanted to reject the NASA article outright, claiming that "The only way sea level rise could approach the high end of the IPCC range is if it exponentially accelerates…". And he drew a chart with an exponential curve. Having made that wrong statement and putting up his exponential chart, he then drew a wrong conclusion, writing: "The rate from 2081-2100 would have to average 20 mm per year, twice that of the Holocene Transgression. This is only possible in bad science fiction movies."

One major flaw in David's argument was that he assumed that seas would rise according to some smooth chart, either linearly or exponentially. What he failed to factor in was that the main contribution to sea level over coming decades will be from melting ice. Another major flaw was that he himself used data and referenced a paper that showed that seas have risen at more than double his "impossible" rate in the relatively recent past.

Sunday, November 16, 2014

Topsy turvy - Wondering Willis Eschenbach tells big whoppers about sea level.

Sou | 8:25 PM Go to the first of 24 comments. Add a comment

Wondering Willis Eschenbach doesn't usually go in for straight fabrication of other people's work, but he made some exceptions today. Usually he'll just wonder and ponder and either invent stuff out of nothing or claim well-established science as his own, usually distorting it.

Today he decided to go for straight misrepresentation (archived here). Or should I say crooked misrepresentation. Almost everything he wrote in his article is contradicted by the work of the scientists he claims to be writing about.

Willis started off with a three year old email, with Kevin Trenberth replying to an "anonymous coward". The email and its response is here:

From: “Kevin Trenberth” <trenbert@XXXXX.edu>
To: “Dr XXXX” <xxx@xxx.xxx>
Sent: January XX, 2011 X:XX PM
Subject: Re: warming
Dear Kevin,
Thank you for your prompt reply. I’m 62 and now semi-retired. I’d like to  bring myself up to speed on global warming, which I read is one of the great catastrophes of our time. You describe rising sea levels as being the evidence for man caused global warming. It had been my understanding that sea levels have been rising steadily for thousands of years and now at a very slow rate. I know there’s been a huge increase in man’s CO2 in the heavy industrialisation since World War 2. How has this increase in man’s CO2 effected sea levels ? 

To which Kevin Trenberth replied:
The rates have not been steady and picked up markedly in the mid 20th century and even more since 1990 or so. CO2 has been increasing since 1750 although mainly since 1850.