A gas that kills can save lives too
Carbon monoxide, a gas devoid of taste, colour or odour, has a bad rap: It’s often deemed a killer, thanks to its lethal effects. Although most carbon monoxide is generated on Earth due to the partial burning of fossil fuels like coal, the gas is present in trace quantities in our atmosphere and beyond. It is the second-most common molecule with two atoms in the Universe, constituting about 10% of all carbon sources. Since the invention of fire, humans have known the noxious effects of carbon mo