You could be able to have that tropical vacation by simply stepping outside. There's been plenty of publicity about the heating of the polar regions, ice melting, etc. Now there's research showing that the earth's tropical girdle is expanding as well. Hot and dryer. The research concludes that the expansion of the tropical zone on earth will shift storm tracks to the north, taking precipitation along. That means more hot and dry parts of the planet around the middle. More Sahara, less rainforest. I think they're hinting you should forget your skiing plans, invest in camel futures.