What we'll eat on a warmer planet

What It Covers

Former White House chef Sam Kass, Arkansas rice farmer Jim Whitaker, and cellular agriculture researcher Isha Datar examine how climate change threatens staple crops, wine regions, chocolate, and coffee, while presenting three concrete pathways — consumer pressure, regenerative farming, and cellular agriculture — to transform global food production before mid-century population growth compounds the crisis.

Key Questions Answered

• •Crop collapse timeline: By 2040, wheat grown under persistent drought conditions will rise from 15% to 60% of global supply, while wine-growing regions shrink by half. With 60% of world calories dependent on wheat, rice, and corn, and population projected to reach 10 billion by mid-century, yield declines create a compounding food security emergency requiring immediate systemic change.
• •Consumer market signaling: Large food companies will not invest in sustainable supply chain transitions until consumers consistently choose climate-friendly products. Even purchasing from companies making unverified green claims sends a measurable market signal. The cost premium exists now but decreases at scale — consumers who prioritize environmental labeling accelerate the economic case for corporate supply chain reform.
• •Methane reduction via alternate wetting and drying: Rice farming generates 8–11% of global methane emissions. Arkansas farmer Jim Whitaker's SmartRice Protocol — cycling fields between flooding and drying — disrupts anaerobic microbial activity in soil, achieving a documented 79% methane reduction in one year while maintaining equivalent yields and reducing water use by up to 50%.
• •Cellular agriculture scope beyond meat: Growing food directly from cells extends well beyond lab-grown burgers. Rennet, a key cheese-making enzyme formerly harvested from calf stomachs, now comes 90% from bioreactors after a cell-cultured version launched in 1990. Vanilla, egg whites, and foie gras are near-term cellular agriculture candidates that avoid land use, animal welfare, and climate costs associated with conventional farming.
• •Heirloom variety preservation through grafting: Artist Sam Van Aken's multi-grafting technique places 40 stone fruit varieties on a single tree, preserving heirloom cultivars — some thousands of years old — that industrial agriculture has eliminated. His Governors Island Open Orchard project grafts 200 antique varieties onto 50 trees, functioning as a living gene bank for fruit biodiversity threatened by climate change and monoculture farming.