350: sustainable learning?

Still feeling under the weather, so will keep it brief! I liked this story from the BBC today, about a new museum in the California Academy of Sciences in San Francisco. It's huge, for a start, with an aquarium, rainforest dome and an ambitious sounding planetarium... and more. But it's also been designed by a prize-winning architect to be as green as possible, with non-toxic insulation, a passive heating and cooling system, a 'living roof' (a garden essentially) and solar-generated electricity. Plus the entire structure is made of recycled steel, apparently. It sounds amazing - an educational experience even before you get to the exhibits...