I’ve posted a new Critical Thinking About Climate video about how to debunk misinformation. This isn't just for climate communicators but anyone dealing with misinformation: a crash course on the psychological research into how to structure a debunking. youtu.be/6I37HD444aI

Hey Dr Doug McNeall - look what you made us do: metoffice.gov.uk/hadobs/monitor…

💧Humidity is a measure of water vapour, which is essential to life on earth. 🌎You can learn more about humidity on our Climate Dashboard, which now includes HadISDH, a new global dataset that measures surface humidity👇 tinyurl.com/y3hf2drr

Hey Ben Sanderson nice to hear you on The Cycling Podcast

This is me, and my excellent colleagues and collaborators rjhd2 micefearboggis David Berry - many thanks to all of the ships for measuring humidity.

Humidity is a measure of water vapour, which is essential to life on earth. You can learn more about humidity on our Climate Dashboard, which now includes HadISDH, a new global dataset that measures surface humidity 👉 bit.ly/3fepYMA

Well, I think humidity is important...

Yes it can

Finally, HadISDH.marine is now published essd.copernicus.org/articles/12/28… and the data are here metoffice.gov.uk/hadobs/hadisdh/

And finally (for today at least) - my own news piece on HadISDH.marine and global surface humidity: metoffice.gov.uk/research/news/…

This seems appropriate to retweet today

'Flux' observations 1985 vs 2017. Each red dot is where we had observations of the parameters required to estimate the air-sea fluxes (LHF, SHF and stress). Much better coverage in the 1980s. Only obs. from ships shown, 125k (Oct 1985) vs 97k (Oct 2017) (1/2). #WMOData #GOOS

Me again, and some other interesting stuff too.

Really chuffed to contribute to Carbon Brief this week as they do an incredible job communicating all that is climate science

Interesting question. I have no idea of the quantity of water vapour that a big shift to hydrogen fuel would involve. For comparison, global water vapour increase since 1973 in the bottom 1m of atmosphere is ~235 000 000 000 kg of water vapour.

Nice graphic by Science Magazine on how #heat affects the human body in "Living with Heat" science.sciencemag.org/content/370/65…

Not as far as I'm aware....

Help! I feel like I should know this but I do not. If I were to perform linear regression of RH (%rh) against specific humidity (g kg-1) how do I correctly express the units of %rh per g kg-1? Is it %rh (g kg-1)-1?

Yesterday, we bought a Tern bike - the school run and shopping has just become a twice daily highlight as opposed to an epic slog. Thanks Tern Bicycles and The Bike Shed

Then on 7 June (1600-1800 BST), we have "Observing and Explaining Climate Change" which will cover different aspects of the instrumental climate record plus how it is used to attribute the causes of climate change and to constrain future changes. Register: eventbrite.co.uk/e/cru50th-obse…