Kenya spent a week planting trees — 17.24 million of them, by the target

President William Ruto led thousands in planting trees in Trans Nzoia for Mazingira Day — the Swahili word means 'environment' — closing a week-long national push with a target of 17.24 million saplings. It feeds Kenya's audacious goal of 15 billion trees by 2032, one of the world's biggest reforestation pledges. This year's theme: 'Our Environment, Our Responsibility.' A holiday, a forest in the making, and a country digging in.