Presumed sulphurous pollution was in great evidence when I was gliding
on Sunday. The wind was a gentle NW'ly with an inversion at around
3,000 feet. Under the inversion was a trapped layer of yellowish
"gunge" (for want of a better word). No doubt it originated from the
coal fired power stations upwind in Yorkshire and N Nottinghamshire.

There was nothing to be seen from the nuclear power station Sizewell
on the Suffolk coast, but maybe pollution from Sizewell is simply
invisible :-)

Jack