“How We Survive” returns Oct. 15

Imagine a future where chocolate and coffee are rare and expensive; where cheap, nutritional staples, like corn and wheat, are threatened.The climate crisis is a food and agriculture crisis. A third of global greenhouse gas emissions come from what’s on our plate. Cow burps, deforestation, water use and food waste all feed into making our planet unlivable. And it’s a double-edged sword, because as the planet heats up, staple crops are withering, soil is losing its nutrients, and droughts and famines will become more common. Our food systems are hurting the planet, and the hotter planet is hurting our food systems. To survive, we need to drastically cut down our use of farmland and we need to find alternative meat sources that don’t give consumers the creeps. How will we keep feeding millions of people? And how will we do that with less land? This season of “How We Survive,” we’ll take you on a food tour of the future. May we interest you in some lab-grown chocolate or some cell cultivated salmon (that is, if you’re not in Florida)? We explore the uncanny valley of meat and visit farmers in our nation’s breadbasket where hotter, drier, less predictable weather has global consequences. Finally, we’ll take you on the ground into one of the more demonized (and misunderstood) parts of the agricultural system: Factory farms.