Word: nitrogenating
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...environment is seriously threatened by the prodigal garbage of the world's richest economy. In the President's own boyhood town of Whittier, a part of metropolitan Los Angeles, the once sweet air is befouled with carbon monoxide, hydrocarbons, lead compounds, sulfur dioxide, nitrogen oxides, fly ash, asbestos particulates and countless other noxious substances. The Apollo 10 astronauts could see Los Angeles as a cancerous smudge from 25,000 miles in outer space. Airline pilots say that whisky-brown miasmas, visible from 70 miles, shroud almost every U.S. city, including remote towns like Missoula in Montana's "big sky" country...
...similar process produced the even deadlier toxin of botulinum bacteria, but because oxygen kills these germs, they were grown in a fermenter infused with nitrogen. Botulism is a severe kind of food poisoning that causes paralysis and death. The Iraqis also used the castor-bean plant, widely grown in the country, to produce the poison ricin, which kills by altering the body's use of proteins and causing circulatory collapse and heart failure...
...area that is home to about 600 million chickens (outnumbering humans about 500 to 1), poultry is the leading suspect. Chicken manure is commonly used as fertilizer on farmlands around the affected waterways. Environmentalists say when it runs off into the water, it brings excessive levels of nitrogen. They have called for restrictions on the use of manure, including more use of sheds to prevent it from being washed into the water by rainfall...
...Nitrogen is necessary to give neurotransmitters the ability to carry out these steps...
Previous assumptions operated under the theory that the nitrogen atom forms a strong ionic bond with a counterion on the brain's target molecule...