The way we farm is changing and calls for intensification of agricultural production to feed a growing population are mounting. Pesticides are common practice everywhere, and the impact on our food system is rather alarming — with a mass decline in the insect population being but one symptom of this hyper-efficient farming. So how do we feed ourselves sustainably? Ecologist Francisco Sanchez-Bayo has some answers. This was first broadcast on February 23, 2019.