The pool at the Four Seasons Hotel Hampshire, England. Four Seasons The luxury hospitality sector—frequented, by default, by the rich and the relatively rich—often flags its eco-awareness, but how much of this is greenwashing? Can a deluxe hotel in the Maldives ever be genuinely carbon neutral if the only way for a non-local to stay is to fly? And do travelers care? Surely the continued popularity of flight-only holidays to “paradise” and short-haul flights between cities suggest that saving the planet is low on the list of the upscale traveler’s priorities? Or does sustainability sell? According to new research from Marriott Bonvoy, it sells. The loyalty program’s 2023 Travel Trends…