Reuters: Nov 22 The Canadian province of Alberta, home to the country's oil sands, said on Sunday it would implement an economy-wide tax on carbon emissions in 2017, addressing long-standing criticism it is not doing enough to combat climate change. The oil sands are often criticized by environmental groups since the industry requires vast amounts of energy and water for production, exceeding pollution from more conventional sources of oil. CARBON TAX The tax would generate about C$3 billion ($2.25 billion)...