Lager yeast traced to Patagonia

It's not widely known - well, none of us knew, anyway - that the yeast used to make lager beer is a hybrid of real ale yeast and another species that's about as distant from it genetically as a human is from a chicken.

Mountain glaciers melting much faster than believed

Melting mountain glaciers are pushing up sea level rises faster than at any time in the last 350 years, say scientists - indeed, many are melting up to 100 times faster.