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.
Viking European Grand Tour. May 10, 2012, 5:16 PM. My wife and I have just booked the Grand European Tour on the Viking Skadi for the summer of 2013, travelling from Amsterdam to Budapest. We are relative novices as far as river cruising is concerned and would welcome any useful tips. I'm particularly interested in the protocol as regards to tipping, as we've already received literature from Viking suggesting that about Â£7 per day/per person is a reasonable amount.