When it comes to climate change, we hear almost only bummer tunes. And like a hungover mall Santa who’s heard “Little Drummer Boy” a little too often, we’re fatigued. We’re betting you are, too. But never fear: As this year closes, pour a glass of rum pum-pum-pum and join us as we search out some good news floating in the rising seas of bad. Bonus: Share your auld-lang-synes of progress with us, and we’ll be sure to toast them, too.