A lawsuit that's expected to be filed Friday claiming young people disproportionately suffer the effects of climate change is potentially precedent setting but also a tough case to argue, legal experts say... It calls on Ottawa to stop conduct that violates their charter rights and to implement a plan that reduces Canada's greenhouse gas emissions "in a manner consistent with what best available science indicates is needed for the federal government to protect young Canadians, do its fair share to stabilize the climate system, and avert the catastrophic consequences of climate change."... Maureen Killoran, a litigator at Osler law firm with expertise in energy and resource law, said the suit is part of a global trend but only a case in the Netherlands has been successful in holding a government responsible for its domestic contributions to global greenhouse gas emissions... Our Children's Trust, which launched a similar case against the United States government, is providing technical support.