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.
It is the parent company of Viking River Cruises and Viking Ocean Cruises. In 2015, the company began offering ocean cruises on ocean vessels that sail the coasts of Scandinavia and the British Isles, and the waters of the Baltic Sea and the Mediterranean Sea.