Tomorrow morning I fly to Huaraz to help out with a U.S. network shoot about melting glaciers in Peru. I’ll be taking the group to Pastoruri, which I didn’t get to visit the last time I was in Huaraz, and I’m looking forward to seeing the once-mighty glacier up close. And, as it happens, something else is happening up there as well that’s rather amazing. The van driver that we’re hiring tells me that hundreds of puya raimondi are in bloom now.  This is the rare bromeliad found only in the Andes and known as the “living fossil.” Puya raimondi flower only once in their lives, after many years, then die…