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.
Credit cards are accepted in most medium-size and larger businesses, particularly in tourist areas. A 10% tip is normal in hotels and restaurants. Check your bill carefully â some restaurants automatically add a 10% to 15% service charge. Some all-inclusive resorts have a strictly enforced no-tipping policy.