CO2 isn't poison unless it doubles. The other air pollutants are though, although I'm also sure that certain kingdom of life wouldn't appreciate the collapse of

CO2 isn't poison unless it doubles. The other air pollutants are though, although I'm also sure that certain kingdom of life wouldn't appreciate the collapse of biological ecosystems as CO2 further insulates the planet. You'll have to consult that kingdom's appropriate court of rights though. The European Convention for Human Rights had a quite narrow scope in that regard.