After yesterday's brilliance, opening the curtains this morning was a bit of a let-down, to say the least. Grey. Then, because the local central heating plants are still running (although apparently not ours), I looked at the free barometer I enjoy all through the winter: The smoke was blowing northwestwards. Understood. Southeasterly wind blowing all the airborne shit up from Tianjin. Gee, thanks Tianjin.