The majority of environmentalists that I've actually had the pleasure of meeting seemed sincerely upset that there are people living on Earth, so this would likely be seen as a major contributor to global warming and the recession of the polar ice caps.

As a side note, have you ever noticed that most feminine environmentalists use hyphenated last names?

The products of combustion shown above are K2CO3, Mn2O3, CO2, H2O (more commonly referred to as salt, carbon dioxide, and water) so this reaction is really no more destructive to the planet's ecosystem than lighting off a REI stormproof match or two.

Jim