SUMMARY This project will use data from randomized controlled trials of cash transfers to poor households in Zambia and Kenya to test whether these programs can protect food security, child health and youth lifecourse transitions during periods of adverse climate conditions. Specifically, we will link longitudinal household data from these two geographically dispersed trials to daily, high-resolution data on temperature and precipitation exposures. We will then take advantage of the randomization of transfers and the effective randomization of climate anomalies at the community level to test whether transfers modify the effects of climate shocks on a rich set of household, child and youth outcomes. This will represent the one of the first studies to test whether transfers can protect children and youth against temperature exposures, and will directly feed into the ongoing global conversation about how best to protect vulnerable populations against climate change.