Six countries produce nearly 60 percent of global carbon dioxide emissions. China and the United States combine for more than two-fifths. The planet's future will be shaped by what these top carbon polluters do about the heat-trapping gases blamed for global warming. How they rank, what they're doing:
Viking River Cruises Tipping Policy. It is customary to give cruise gratuities, subject to your satisfaction of services rendered. Gratuities on board and on land are not included in your full fare.
Channel the Nordic way when you cruise with Viking River Cruises. Far and away the leader in river cruising, Viking Rivers has more than 30 ships sailing on waterways youâll feel fortunate to experience, such as the Nile, Danube, and more.