Don't smoke - nicotine and tobacco can really hurt your skin.
I'm glad I don't have to explain to a man from Mars why each day I set fire to dozens of little pieces of paper, and then put them in my mouth.
We lit the stove a few days ago and the entire room is filled with smoke. I prefer central heating, and I'm probably not the only one.
The night sky in North Korea might be the most brilliant in northeast Asia, the only airspace spared the coal dust, Gobi Desert sand, and carbon monoxide choking the rest of the continent.
Diesel engines do not emit enough carbon monoxide to kill anybody.
Water is an issue, and, clearly, what's happening with the filth in our environment and the levels of carbon monoxide in our atmosphere are the really scary issues right now, the very troubling ones.
Smoking is hateful to the nose, harmful to the brain, and dangerous to the lungs.
Most human beings have enough sense to know that if they work in a city that has a serious smog problem, it's wise to either stay indoors or at least wear a mask that will filter out the poison. But cigarette smokers have their own little concentrated toxic smog pack that they don't avoid.
Eighty percent of air pollution comes from plants and trees.
Nest Thermostat owners like the carbon monoxide link. If Nest Protect's carbon monoxide alarm goes off, the Nest Thermostat automatically turns off the gas furnace.
