If you think the periodic table is confusing, take a look at the egg carton labels of your local grocery store. So many words! So many symbols! And why are some cartons $2 a dozen and others $8? If you’re seeking the best choice in terms of hen welfare and environmental sustainability, look for eggs that are pasture-raised or free-range, humane, and organic. These eggs will cost you more, but they’re better for the farmers, the animals, and the planet. At the store, we reach for Handsome Brook Farms, Vital Farms, Carol’s, and Pete and Gerry’s. Or take a trip...