Rabobank reports that fertilizer supplies will improve in 2023 with downward pressure on phosphate and potash prices, but nitrogen may see a 20-30 percent price hike. This is an important competitiveness factor for agricultural exporters. North and South America both have abundant supplies of petroleum, though the North produces four times as much. Natural gas is a most efficient source for nitrogen, and North America annually produces more than five times as many terawatt-hour equivalents in natural gas than does South and Central America.  South America’s share of global agricultural trade is growing, provided food sovereignty movements and eco-protectionism doesn’t stop it. But at this juncture, the region is more depen...