butterfly effect:- if everyone on earth all 6 billion blew upwards at once would it cool the atmosphere?

i dont think so, isnt breath quite warm when it leaves your mouth so wouldnt it warm up the atmosphere?

No, and here are 3 reasons!

1. any effect on the temperature of the planet as a whole is nearly solely reliant on heat entering or being extratcted from the outer atmosphere.

2/. EVeryone breathing out would involve everyone breathing in just before hand so any apparent cooling would be artificial.

3. AND when you breath out you actually breath out hot air, it only feels cold on your skin when your skin is damp as it causes evaporation and the water leaving your skin takes heat with it. So if there was a butterfly effect it would cause the world to heat up not cool down

No, I'm afraid not.

2nd law of thermodynamics rules it out if nothing else. In this context it basically means that you can't cool something down without creating more heat than you're taking away.

I guess you could slightly (by a tiny, tiny amount) cool certain localised (like 0.0000000000000000000% of the atmosphere)areas for a second or two, then people would be gasping for breath and their hot breath would more than undo the 'cooling' effect.

No.

Moving air produces a cooling effect by evaporating the moisture (e.g. sweat on your skin).

The air coming out of your body is at body temperature (around 36°C) so if everyone blew at once it is more likely to increase the surrounding air temperature but only for a very short time.

No, because you breath out carbon dioxide which keeps head in the atmoshere. Also the size of the atmosphere is alot bigger than the lung-size of 6 million people so the heat would dissapate. When you blow you actually blow out warmed up air because your body is warmer than the air around you and it heats up the air.

Absolutely not. People don't seem to realise how puny the whole of all life on earth is compared to the planet itself... it's almost like 1 grain of talcum powder in 10 kilos of the stuff.

With all the flagrant in accuracies in your statement, you also seem to forget we exhale CO2, which acts as a greenhouse gas, making and keeping the Earth warm.

Yes, but if one Democrat let out his/her hot air it would counteract this effect.

what a mad thought lol im now sat here thinking about it, you would think so though wouldn't you.

No we exhale co2,