What problem does the hudson river still face

See Below

Explanation:

Just think about it. The Hudson River leads directly into the Atlantic Ocean, so imagine all of the probable pollution and trash that gets into it from NYC and other cities, combined that is a lot of a probable trash, which ends up in our oceans, then leading to climate crisis.

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metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)