Nose - will become bigger because it will need more time for filtering the polluted air. Also, it's expected that hair in the nose will become denser and longer.
Eyes - will become small, similar to a pig's nose. That's because it will be difficult for them to support the chemical substances for the atmosphere.
Lungs - will augment and will change its structure. That's because the lungs will have to work out a new system for filtering the air.
Liver - since its main function is to clean the blood, the liver will increase in dimensions.
Skin - will become rougher and thicker for being more resistant to pollution.
Hair - will disappear in the result of climate warming.
Bone structure - the man will become slender and short in height. That's due to the lack of D vitamin, as a consequence of the poor quantity of sun light and poor-quality food.
Here's a picture of the possible future human
