| N2O  Τμήμα Άποψης 1 #45551
 Nitrous oxide is expected to be the leading ozone depleter now that Freon is abating. It's less potent than halocarbons, but there's a lot more of it. That's why engines are mandated to have strict NOx controls, but the leading source: emissions from excess ammonia based fertilizer. | 
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