A massive drought has emerged across large swaths of the US agricultural belt, threatening crops and livestock and eventually affecting food prices, at a time when fertilizer and diesel costs are soaring. As of early April, 60% of the Lower 48 is in drought as the Northern Hemisphere growing season begins and farmers begin plantings, according to NOAA. The southern US is already experiencing severe, extreme, and even exceptional drought conditions, putting pressure on key crops such as sugarcane, rice, and peanuts, while fruit trees have also been…