As if there weren't enough problems with climate data already, the latest bright idea from CAGW subscribers is to use opinion polls to measure climate change. I kid you not...
The journal Biology Letters this week reports a novel yet kind of obvious way to tackle the data dearth; simply asking Himalayan villagers about their experiences.
To be fair, the phrase "simply asking" does the researchers a disservice, because what they emphasise throughout their paper is the need to gather local knowledge "rapidly and efficiently... using systematic tools".
It has to be structured, internally consistent and rigorous; that's the message.
We know that some scientists are happy to treat climate model output as data. Now it seems that people's opinions are to be counted as climatic data too.
It's a funny old science, innit?