Remember Snow Fences?

The Journal-Gazette and Times-Courier have an online site which promoted a conservation meeting, but this piece caught my eye. Yes, it's mostly local news, but I too wonder whatever happened to snow fences? I guess global warming has reduced the amount of snow in the areas I live in to the point where it's not economical to put them up. (They are mentioned in Wikipedia and there seem to be a scattering of articles, mostly in the West, including this one about a Wyoming youngster testing various design.)