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Guest commentary from Dirk Notz, MPI Hamburg “Well, it’s not really good timing to write about global warming when the summer feels cold and rainy”, a journalist told me last week. Hence, at least here in Germany, there hasn’t been much reporting about the recent evolution of Arctic sea ice – despite the fact that Arctic sea ice extent in July, for example, was the lowest ever recorded for that mo

Hope the next IPCC report has a better section on the retreat of sea ice. It has already retreated faster than all models under all scenarios; obvious bias in the models. Also, the IPCC chart comparing models was a display of the average extent during the months of July, August and September. The implication being that there can’t be any sea ice during those months before the arctic can be said to

Four new papers discuss the relatiosnhip between solar activity and climate: one by Judith Lean (2010) in WIREs Climate Change, a GRL paper by Calogovic et al. (2010), Kulmala et al. (2010), and an on-line preprint by Feulner and Rahmstorf (2010). They all look at different aspects of how changes in solar activity may influence our climate. The paper by Judith Lean (2010) has the character of a re

As many of you will be aware, a large number of emails from the Climatic Research Unit (CRU) at the University of East Anglia webmail server were hacked recently (Despite some confusion generated by Anthony Watts, this has absolutely nothing to do with the Hadley Centre which is a completely separate institution). As people are also no doubt aware the breaking into of computers and releasing priva

[Note this is page is updated regularly. Please notify us of any dead links. Last update: 10 May 2022.] We’re often asked to provide a one stop link for resources that people can use to get up to speed on the issue of climate change, and so here is a selection. Unlike our other postings, we’ll amend this as we discover or are pointed to new resources. Different people have different needs and so w

There were a number of media reports today related to , for instance, New Scientist, The Guardian etc. However, this is really just the beginning of what is likely to be a bit of a cottage industry in the next few months relating to possible causes/influences on the extreme temperatures seen in 2023. So to help people keep track, we'll maintain a list here to focus discussions. Additionally, we'll