Reuters: A group of world leaders and international banks on Thursday urged more countries to launch schemes that put a price on carbon dioxide (CO2) emissions. Canada's Prime Minister Justin Trudeau and German Chancellor Angela Merkel were among leaders calling for faster action on carbon pricing, along with the World Bank and the International Monetary Fund, ahead of Friday's New York signing ceremony for the climate deal agreed in Paris last December. Some 40 nations and more than 23 cities, states and...