hooray!

It's not every day you see an article about the use of isotopes in environmental tracing (a topic I happen to love), but today's NYT had this:

http://www.nytimes.com/2011/11/22/science/rare-krypton-81-isotope-helps-track-water-in-ancient-nubian-aquifer.html?src=dayp

This job does a good job of explaining just how geologists think about groundwater movement measurement using isotopic tracers. Gee, actual science news in a mass media outlet? Who wudda thunk?