Bethlehem unveils climate action plan 1 year in the making Updated 8:00 AM; Bethlehem — a city once-best-known for an industry that blanketed it with pollution — hopes to complete its industrial rebirth by becoming a leader at fighting climate change. Bethlehem officials on Monday unveiled the city’s climate action plan, a 279-page blueprint to help the city achieve a more equitable, resilient, healthy, prosperous and inclusive community that tackles climate change head on. The plan lays out concrete actions for Bethlehem as a community — think net-zero emissions by 2040 and buying all renewable electricity for city operations — and offers a roadmap for addressing climate change’s local effects.