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.
Please see Princess Cruises Booking Conditions, or for more information about financial protection and the ATOL Certificate visit: www.atol.org.uk/ATOLCertificate. â Free drinks package applies to all Crown Princess Europe cruises departing from Southampton in 2017 booked by 31 May 2016, subject to availability.