I've had individual conversations about this, but I thought I'd post it publicly so I could include references and you can check my math if you like.

Nitrous oxide is sometimes used as a recreational inhalant drug. One of the most interesting features of N2O as an inhalant is that it is minimally metabolized; virtually all of the gas inhaled is either exhaled, or outgassed later by lipid membranes in the body.

Nitrous oxide is also a greenhouse gas, with 275-300 times the warming poten... read more