The Everglades aren't close enough to my sandwich for me to think they're worth explicitly acting to protect, even now that Everglades-destruction has occurred to me as an undesirable potential side effect.

As someone who grew up in Florida, I politely request that you not eat PB&J sandwiches made with jelly made with sugar grown in Florida by conventional means -- the pesticide runoff tends to ruin the Everglades. If it's just PB, the sugar's probably not a big deal, although some brands add a lot of sugar.