Nature writer Roger Deakin considers wood as a vital element of life.
The Habur Gate – a dusty two-lane checkpoint – may be one of the best routes out.
Fearful that US failure there could unleash the Taliban and other Islamist insurgencies, Russia may help NATO open a supply line through former Soviet territory.
But Pentagon officials say Kyrgyzstan's move to close a supply route won't impede operations in Afghanistan.
US State Department officials said the US could offer to pay the Kyrgyz government more for the base.