Regarding "An S.F. value worth protecting" Open Forum, Feb. 28: I'm in absolute agreement. San Francisco's green spaces are one of the things that make this city a unique and incredible place to live. The value of natural areas is one worth preserving not only for our cities, but also across the nation.
That's why it's necessary to not only volunteer in our local parks, but to push for comprehensive climate reform that would have a nationwide impact. For example, a revenue-neutral tax on
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