In this May 23 photo, arborist Jim Clark inches up a giant sequoia to collect new growth from its canopy in the southern Sierra Nevada near Camp Nelson, Calif.
In this May 23 photo, arborist Jim Clark inches up a giant sequoia to collect new growth from its canopy in the southern Sierra Nevada near Camp Nelson, Calif. Scott Smith AP
In this May 23 photo, arborist Jim Clark inches up a giant sequoia to collect new growth from its canopy in the southern Sierra Nevada near Camp Nelson, Calif. Scott Smith AP

Group clones California’s huge trees to fight climate change

July 22, 2016 09:55 PM