Tourism: Fly by energy guzzling jet to distant location, stay in energy intensive Hilton, eating energy intensive imported food, enjoy services provided by low-paid natives, demonstrate to them by your presence the inferiority of their ways and their need for Western "development", being one of the c 5% of the world's people who can afford the luxury of international travel while perhaps 15,000 people die every day because they can't get sufficient fuel to sterilise their drinking water, in order to do things other than look at nature.