If there’s one car milling about emitting 1 pound of CO2 per mile driven, that does not make much of a dent in the atmosphere. If there’s one billion of them (a quarter of which in the U.S.), they do.

The air on the Indonesian island of Sumatra has become all but unbreathable in recent weeks, because of the uncontrolled burning of large swaths of primal forest to make room for pastures and crop fields.

How are these phenomena connected? By population increase!

According to a recent U.N. report, we’re adding about 227,000 mouths a day. That is a lot of mouths to feed – a lot more space we need. It looks like the success of our species may cause its demise.

But not before a lot of other species are demised first, of course.

The Center for Biological Diversity is one of the few environmental organizations openly recognizing that most, if not all of the environmental problems plaguing us today are in large part due to procreation, a.k.a. – ummmm – SEX.

Sex is undeniably one of the basic joys of life. But it also tends to produce babies. And not all of them cute and cuddly – about 50% of U.S. pregnancies are unwanted or ‘ill-timed’.

One case where business and pleasure don’t go together too well. But, joy: they can be separated by the flimsiest of membranes. It is called a condom.

The CBD, under its “Population and Sustainability‘ program, has launched the ‘Endangered Species Condoms‘ project to distribute condoms among the U.S. populace so that the endangered species depicted on the packaging may become less endangered by proper use of the contents (by the populace – not by the endangered species, obviously).

The Weekly Green spoke with CBD’s Population Organizer Leigh Moyer.