I wonder if the climate change debate will cover aircraft pollution and cruise liner pollution which are both horrendous. I see white clouds, water vapour from precipitation and aircraft exhaust. I see grey clouds, water vapour with carbon and other chemical molecules mixed in from aircraft. I see black whispy clouds, carbon and othere chemicals free floating being carried on the winds and falling with the rain. This carbon etc. along with the high levels from cruise liners falling on the land and being inhaled, falling on the surface of the sea and being injested by fish etc. falling on the ice in the colder areas causing it to warm and melt. All of this I imagine to be happening, could someone comment? But I have no doubt that the motorist like myself will carry the blame. Remember, an aircraft is taking off somewhere every few seconds, and a cruise liner emits tons of pollution, I believe at any one time it can be equal to a million cars?