Oh, one more from the links pile: a gorgeously illustrated post by Scott K. Johnson about the geology of California’s Sierra Nevada. Is the mountain range rising or falling? We still don’t really know.

That might disappoint people who just want a simple answer, but messy fields of research are interesting fields of research. As Greg Stock [geologist for Yosemite National Park] described it, “Part of what’s been fun about being involved in this issue of Sierra uplift, for a couple of decades now, is that every so often—actually pretty often—a paper will come out that really challenges a lot of what we thought we had accepted before. Even though I know it’s a little frustrating for our interpreter rangers here [at Yosemite], who kind of want a nice clean story to tell the public, I have to tell them—no, no, this is great, because this is the way science works. And it’s a great thing to be involved in a field of study that is this turbulent.”

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