There is a particular kind of morning I came to know well in the highlands of Kenya — you step outside and the horizon has disappeared. Not because of rain, not because of dust, but because something far away is burning and the wind has carried its breath to your doorstep. You did not light that fire. You may never see it. And yet you cough because of it, your children stay indoors because of it, and you begin to understand something that no map of political borders can teach you: the air does not recognize the lines we draw on paper.

I imagine that if word reached me of cities across North America thick with smoke from forests burning hundreds or thousands of miles away, I would not be surprised, though I would grieve. This is the same lesson the Rift Valley taught us when the rains stopped coming on schedule, when the rivers that fed our farms grew thin, when the hillsides stripped of trees could no longer hold the soil or breathe the moisture back into the sky. A forest is not merely scenery. It is a lung, a sponge, a regulator of temperature and rainfall, a keeper of the water cycle. When we burn it, log it, or simply neglect it, we are not making a local decision. We are making a decision that travels on the wind to people who never had a vote in the matter.

I would ask the person standing in that smoke-choked city to resist two temptations. The first is despair — the feeling that the fire is too far away and too large for any single person to matter. The second is to think this is purely a matter for scientists and diplomats, something to be solved in conference rooms far from your own hands and your own soil. Both temptations rob you of your power. When we began the Green Belt Movement, we were not trying to solve the whole of Africa's environmental crisis in one gesture. We were planting one tree, then asking a neighbor to plant one, then a village, then thousands of villages. It was slow. It was often mocked. But it took root, quite literally, because ordinary people — mostly women who had never held political office — understood that the land under their feet was their responsibility, not someone else's.

I would also say this: the smoke is not only an environmental problem. It is a mirror held up to how we govern ourselves. Forests burn out of control, or are cleared without limit, when there is no accountability — when the people who profit from cutting them down do not live close enough to breathe the consequences, and when the people who make decisions about land are not answerable to the communities who depend on it. This is why I always insisted that tree planting and democracy were not separate causes. A government that silences its citizens is usually the same government that will silence a warning about the land. Protecting a watershed and protecting the right to speak freely in defense of that watershed are the same struggle wear