Like many of you readers, I believe in the intrinsic value of nature. When I hike through aspen groves above Santa Fe glowing gold in the fall, or head out into the vastness of the Valles Caldera, I feel the generosity of these places. I experience their restorative power. And at the deepest level, I know nature is priceless. And yet as an investor, I also recognize a harder truth: In today’s economy, what doesn’t have a price is often ignored.