L
lynnvinc
Guest
It is the gold standard re the science of AGW, tho I have my own criticisms of it (see at the bottom).Hi Lynn,
Why zactly do you think the IPCC is the gold standard?
It is based on the top climate science from around the world. Considering that it is put together by scientists and scholars who are doing it in their free time and for free, it is absolutely amazing there are not more mistakes than what has been found. You should read it sometime and see all the work that was put into it – plus all the work that went into all the myriad of studies they cite. You’ll see how amazing it is.
For me It is a great source for finding and going to the original articles. That’s how I found the glacier mistake…and sort of thought it was a mistake bec I’d been in contact with climate scientists around 2005-6 (before AR4 came out) re a futuristic screenplay I was writing, and asked them when they thought the sea would rise (incl glaciers melt) to 60 meters in a worst-case scenario, and they said it would take many centuries (can’t remember exactly what they said, only that I set my story around 2700). My sense when reading the 2035 date was that it seemed wrong, but since I’m not an expert I really didn’t know for sure it was wrong (apparently the person who make the mistake is not a glaciologist, so he probably didn’t have a clue his sources were wrong – I’m thinking it may have been based on one glacier under study, maybe a small one, could be melted away by 2035, which someone then extrapolated to all glaciers). When I saw they had used grey lit I was sort of surprised bec I thought only they could only use peer-reviewed lit, but later learned that was permissible in WGII - Impact chapters, but not WGI - Science chapters. And as I mentioned, the synthesis reports by humanitarian and environmental orgs are usually top quality, themselves based on peer-reviewed lit.
A year later from my reading (about 2 years after AR4 had come out!!!) the mistake was finally discovered by a glaciologist. I was absolutely shocked to my gourd that no one, NO ONE, except me (and maybe a few others), had read the report about impacts on Asia. NO ONE CARED ABOUT ASIA. That was my reaction, and still is. That is the important take-away message from glaciergate.
To err is human. I find nothing wrong with errors in such a massive report. I make errors, and I suspect you do too. What is shocking is that it took so long for them to find the error, because NO ONE WAS INTERESTED IN READING ABOUT AGW IMPACTS ON ASIA. NO ONE. That is the shocker.
RE my criticisms of the IPCC reports:
Science is very reticient and conservative, because scientists strive to avoid the FALSE POSITIVE of making untrue claims, usually requiring 95% confidence before making a claim. They cannot be “the boy who called wolf” or no one will believe them again, so their individual studies are very cautious in any claims, and full of caveats, etc.
When you put a bunch of cautious scientists and scientific studies together in a big report like the IPCC reports, it’s like “caution squared” - or the least common denominator of the issues and problems re AGW. I’m sure most of their errors are that they UNDERESTIMATE the issue of AGW. Those will be found out when we suffer repercussions from AGW that exceed what they have projected.
Unlike scientists, we laypersons and policy-makers should be concerned about avoiding the FALSE NEGATIVE of failing to address a true catastrophe and disaster. We cannot afford to be “the villagers who got eaten by the wolf.” We buy insurance, we don’t not feed our children with something that even has 50% confidence that it will harm or kill them. Even if there is only 50% confidence that the lump is cancerous, we want to have it removed or treated; we don’t want to wait around for 95% confidence. Our caution is on the side of “expecting the worst” and prudently striving to avoid it. Since our immortal souls are also in jeopardy if we fail to address the potential harms of AGW – which we have been duly warned about in scientific reports and synthesis reports, like the IPCC – the matter is all the more serious.
So when I read the IPCC, I think the situtation is at least a bad as what’s written there, and probably much much worse. I think pablum pablum. If they’re saying X, then it must be 2X.