Other recycling efforts - only do if I have to.
Because beyond cans and cardboard, not much recycling has a cost-benefit.
According to the E.P.A.’s estimates, virtually all the greenhouse benefits — more than 90 percent — come from just a few materials: paper, cardboard and metals like the aluminum in soda cans. That’s because recycling one ton of metal or paper saves about three tons of carbon dioxide, a much bigger payoff than the other materials analyzed by the E.P.A. Recycling one ton of plastic saves only slightly more than one ton of carbon dioxide. A ton of food saves a little less than a ton. For glass, you have to recycle three tons in order to get about one ton of greenhouse benefits. Worst of all is yard waste: it takes 20 tons of it to save a single ton of carbon dioxide.
Once you exclude paper products and metals, the total annual savings in the United States from recycling everything else in municipal trash — plastics, glass, food, yard trimmings, textiles, rubber, leather — is only two-tenths of 1 percent of America’s carbon footprint.