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Computer models pinpoint catalysts for replacing fossil-fueled ammonia production

Ammonia is one of the most important chemicals produced in the world, ranking second only to sulfuric acid in the total volume produced each year. It is used mostly to make fertilizer, which is essential to feeding the world's population. Yet its production accounts for up to 2% of the world's energy consumption and about 1.5% of greenhouse gas emissions, so the search has been underway for ways to produce ammonia more sustainably.