The United Nation’s favoured approach would require massive wealth transfers and be wildly unpopular.

Concentrations of two of the air pollutants of greatest concern have generally decreased across Canada since 2000.

Since taking office, Alberta Premier Rachel Notley has been very aggressive on the climate file. Attempting to remedy what she portrayed as a history of environmental negligence by her predecessors , the premier swiftly increased and expanded Alberta’s carbon tax, placed a hard cap on carbon dioxide emissions, set stiff targets for reducing methane emissions, declared an accelerated phase-out of coal power generation, and promised to replace much of that power with costlier wind or solar power generation.