Environmental and public policy groups in New York are calling for a state constitutional amendment that would guarantee residents a right to clean air and water. Environmental Advocates of New York and EffectiveNY are promoting the proposed amendment with online video ads Thursday featuring children from Hoosick Falls, where water wells have been contaminated by an industrial chemical. “You shouldn’t have to fight for clean water,” says 15-year-old Mikayla Baker, a Hoosick Falls ninth-grader featured in one of the two videos. The groups say a constitutional amendment would give residents more power to hold state lawmakers and regulators accountable for...