"Can you start a post and thread on the adverse economic and environmental impact of pets?"

Asked Phaedrus in the comments to "If you really care about global warming, stop all unnecessary travel."

The same tree huggers that yammer on and on about the environment allow their pets to use everyone else property, public and private as a restroom for their animal. Human waste has to be treated under all kinds of regulatory requirements. Pets are allowed to deposit equivalent waste at will wherever as if they are wild animals which they aren't. And don't get me started on what it takes to feed them, the grain, meat etc. You could feed a lot of starving people using the grain that goes into pet food.

Consider this that post. And let me also call attention to my 2010 post "If you really believed in global warming, you would turn off your air conditioning," which had an addendum with a list of 6 more things people should do to demonstrate actual belief in the coming calamity: