|MadSci Network: Environment|
I don't know how baking soda (sodium bicarbonate) acts on ice, but it should not harm most environmental ecosystems. It may actually have the benefit of neutralizing toxic phenomena such as acid rain, some pesticides, and mining wastes. It would need to be in large amounts to be effective, however. It could raise the alkalinity (resistance to change by acid) of some water bodies, but should not harm the environment.
Hope this helps.
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