Tree restoration plays an important role in climate change mitigation and adaptation. However, we don’t yet have evidence of the human health benefits of this restoration or the impact it has on reducing heat stress. Dr Chiwanga will lead this comprehensive study to evaluate how trees can be used to alter microclimates and protect Tanzania’s millions of outdoor agricultural workers from the long-term health risks of heat exposure. The research will build on land restoration work in central Tanzania which has championed local farmers to regenerate nine million native trees in three years.