thomas was likely using silicon technology when he posted his comment, and he had no problem with that, ubiquitous as such technology is.  Given the scales of digital and PV technology, recycling and proper disposal can be assumed to be developing.  Life cycle energy costs together with disposal costs should make mass-produced PV very bearable.

also, notice the decent angle for winter sun on the stadium.  double benefit, as just to the right of the photo is one of Bremen's giant swimming baths, with 4 diving and giant pools, kid's zones, slides and games, etc., you an get tan from both directions.  :-))

"Life shrinks or expands in proportion to one's courage." - Anaïs Nin