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President Franklin D. Roosevelt’s New Deal created a sprawling range of public-works programs to address the Great Depression. Eighty years later, some present-day members of his party say a program no less grand in scope is needed to address a new crisis -- the existential threat of global warming. A band of self-described progressive Democrats energized by the party’s successes in last year’s midterm elections have unveiled a wish list of government actions they’ve packaged as the “Green New D