Here’s a simple Earth Day Countdown note. Biodegradable cat littler breaks down. The millions of tonness of conventional cat litter that go to landfills every year are made from bentonite clay, and so doesn’t.

The wikipedia entry on this topic reports that biodegradable litter materials are pellets made of recycled paper, wood shavings (primarily pine), wood, corn cobs, dried orange peel, or wheat bran. Some pet owners prefer these litters due to their friendliness to the environment; others are attracted by the flushability of the litter. Also, most of these forms of litter are recycled from human usage and are thus re-using a waste product as opposed to drawing clay from litter mines.

Litter mines. Funny.