Climate change could cut crop yields up to a quarter

As soon as 2050, this "moderate" scenario in which greenhouse gas emissions peak around 2040 and slowly taper off -- a trajectory aligned with current trends -- would see global losses of nearly eight percent. And if carbon pollution worsens, the loss of calories across the same six staples -- corn, wheat, rice, soybeans, sorghum and cassava -- rises to nearly a quarter by century's end, the researchers reported in Nature. More generally, every additional degree Celsius of warming reduces the...