.............not all those that wander are lost..............

Monday 10 December 2012

Chlorine clouds at sunset........

Trundling the trolley across the car park at Tesco's yesterday afternoon, just as the sun was setting, some strange rainbow clouds caught my eye.

{Rainbow coloured clouds - pink, green and yellow}

Today in the local paper there was a similar picture - and a scientific explanation.....

These nacreous clouds are apparently caused by a build up of greenhouse gases in the troposphere, about 50 miles above the earth - more often seen in polar regions.  So although attractive to look at, they're not a good sign!

Global warming anyone...............?




5 comments:

Alan Sloman said...

Here you go, Miss
All you ever wanted to know about nacreous clouds:
LINK

Laura said...

I could tell you that it's methane gas mixing with ozone and producing chlorine - but I've no idea what that means - except it's not good! But it was pretty!

afootinthehills said...

Aren't they wonderful? There have been lots of sitings in Aberdeenshire apparently. Lucky you.

Laura said...

Thanks for your comment - sorry about the original one which I deleted by mistake (doh!) I'm not sure having a hole in the Aberdeenshire ozone layer is a good thing though......!

afootinthehills said...

What on earth are you doing up there to cause all this destruction Laura?