I wouldn't say any book, but the news. Our planet is failing quickly, with no concerted effort to stop it. My zone has had massive collapses in insect and wildlife year over year, and I aim to help combat that as much as possible by planting native plants, providing extra fruit and vegetables for the wildlife (I keep a decoy garden for them), and doing it all as resource conscious as possible. Nothing but good things can come from having even a few native flowering plants around for bees and hummingbirds, and going a bit of an extra mile to compost to keep the good insects that contribute to that process happy and expanding their colonies.