You don't drive or fly much, you heat your home with renewable energy, eat meat rarely and already changed every light bulb you reasonably could. Your carbon footprint is admirably faint, but have you looked into your kitchen trashcan lately?
In the United States, food scraps account for 12 percent of the waste stream; in cities where food disposals aren't common, that percentage is even higher. Things are even worse in Hong Kong, where food makes up about one third of...
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