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.
Here's a look at how tipping is handled by each of the world's major cruise lines. On most cruise lines, but not all, gratuities are expected and encouraged. The traditional tipping procedure is to hand cash gratuities to the service staff on the last full day or evening of the cruise. For longer itineraries, tipping on a weekly basis may be the norm. The cruise lines that follow this tipping procedure are Crystal, Disney, Fred. Olsen, Hurtigruten, P&O, Royal Caribbean, Star Clippers, Uniworld and Viking River Cruises.