There’s just one oak left at Mamre.
Scientist Susanne Simard on how trees communicate and nurture each other
Each tree in my neighborhood is the tree of life.
My favorite is a 100-year-old male cottonwood. I call him Grandfather.
As leaves fall from the trees, Ali Smith helps us fall into the dreams and fears of her characters.
"I've learned a lot from working with trees. More important, I've worked with people on imagining how to love each other."
Life in Africa's Sahel region is precarious. There is little biodiversity, annual crops offer a meager harvest, and when the rains don't come famine does. But there is a way to break this cycle.