OTTAWA — Three young women and two environmental groups on Tuesday filed a lawsuit against the Canadian government seeking to force it to develop an action plan to meet its key climate goals. The lawsuit comes as Prime Minister Mark Carney’s government shifts Canada’s climate and energy priorities, rolling back key environmental policies while advancing major energy and infrastructure projects to reduce dependence on the United States. Announcing the lawsuit, plaintiff Shirley Barnea, a university student from Quebec, said authorities had an obligation to build a sustainable future for younger generations. …The legal action aims to compel the government “to chart a credible, up-to-date course of action” and “to protect Canadians from the worsening impacts of climate change,” according to a statement from the Canadian Association of Physicians for the Environment (CAPE), which is also a party to the lawsuit.