Global warming is already costing farmers over $20 billion a year, and the losses could climb eightfold by 2100 as heat and drought squeeze maize, wheat and soybeans

As global temperatures rise, the agriculture sector is facing dire challenges, with key crops like maize, wheat, and soybeans seeing a decline of 3.5 percent in yields. The economic ramifications are staggering, totaling around $400 billion over the past two decades. Projections indicate that under high emissions scenarios, losses could rise dramatically, hitting least-developed nations the hardest.