A quick-and-easy test is to look for two items, said Sonu Shivdasani, founder of Soneva and Six Senses hotel brands. First, sustainable hotels should not have branded water of any sort, he told CNBC Travel. "Governments can create the context, but businesses need to make the change," Shivdasani told CNBC Travel. Source: SonevaShivdasani said he decided to institute a guest environmental levy after the company measured its "scope 3" emissions. Shivdasani said that after Soneva determined that 85% of its carbon emissions were "scope 3" emissions, the company introduced the 2% carbon levy.

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Persons: Sonu Shivdasani, Soneva, Shivdasani, that's, It's, it's, Eva, Soneva Shivdasani, Kelvin Law Organizations: CNBC Travel, Nanyang Technological University, CNA, Soneva, World Health Organization Locations: Maldives, Thailand, British, India, Myanmar, Darfur, Sudan