By David Estrin and Isabel Dávila Pereira ( April 9, 2019, 2:19 PM EDT) -- Canada has remarkably broad support from unlikely allies who agree its new law to fight climate change should be upheld, and the Ford government’s constitutional challenge rejected, when the Ontario Court of Appeal hears four days of arguments set for mid-April. Even major carbon emitters support Canada’s Greenhouse Gas Pollution Pricing Act (GGPPA). The Act took effect April 1....