Hi Starlight,
It's several factors combined I think from what I've heard. It sounds like there is a problem across the sciences in that grant money has become scarcer and so where a lot of people are employed on soft money as is usual in the sciences, then if grants don't come in then redundancies follow. Then some universities are shutting research groups / subjects who disappointed in RAE2008. Finally, some universities are in financial trouble and all are planning for cuts regardless of who wins the next election. I've heard people say that 10% budget cuts across the board would be a good outcome! So tbh I think it's not great anywhere but where a few of those factors combine, it's really bad. I'd have thought your subject area might be safer than most to be honest given the political salience of climate change. But most cuts tend to turn up on the Times Higher Education website (particularly interesting at times are the comments under the articles...).