. [♪♪♪] [birds singing] [crickets chirping] [makutsawa montahuano speaking spanish] [sighing heavily]ve been told i have a malignant lump in my left breast. i was shocked at first, but have impressed myself with how easily i go on like normal. will write more later... but i wanted you to know. love-- [takes a deep breath] ...your sister, saille. [♪♪♪] [♪♪♪] [david bowman] so this is a pencil pine-- athrotaxis cupressoides-- and it's one of the oldest living tree lineages in the world. you can find the imprints of their fossils over 100 million years. they grow very slowly, they have very limited capacity to regenerate after fire. this thing might be anywhere between 800-- might even be 1,000 years old, and unfortunately, because of climate change, the next stop is extinction for these things, they're going to become extinct. it's one hell of an emotional journey because your subject matter, motivating you and moving you, is under threat from ecological climate forces and it's being, in some cases, destroyed before your eyes. [thunder crashing and fires roaring] [sirens wailing] we tho