The best-crafted and most emotionally affecting nature poems I've read in the past few years are in two collections published by Alex Pepple's Able Muse Press:
All the Wasted Beauty of the World
by Richard Newman
Greed: A Confession
by D.R. Goodman
Neither book presents a traditionally romantic, pastoral view of nature. Newman often explores reassertions of the natural world within areas of urban decay (usually in or near St. Louis, MO); Goodman often explores the interface between development and wildlands (Oakland, CA, and elsewhere).
I'm aware that these approaches to nature are probably not to everyone's taste, but I find both inspiring. Here are one poem from each book:
Richard Newman, "Alley Possum"
Fellow urbanite, how could your race
survive—convinced I can't see you this close,
hunched next to our back porch, your grinning face
hidden behind a bag of Ranch Doritos.
In our next-door neighbor's headlights, your eyes shine
Heineken green, and you keep eating, heedless.
You forage in the cracks of our lives and dine
on our debris, jaws crammed with infected needles.
By day you play dead in a dumpster—poke
you with a stick, and your whole being explodes.
Primordially stupid, tireless joke,
you waddle down the shoulders of our roads,
loot gardens, lie in our bed of impatiens,
finding the hidden gaps in our foundations.
D.R. Goodman, "Owls in the City Hills"