Palma de Mallorca. World Tourism Day is being celebrated today in Maspalomas in Gran Canaria, focusing this year on "Tourism and Sustainable Energy: Drivers of Sustainable Development". The event is organised by the United Nations World Tourism Organisation (UNWTO) to promote awareness in the international community about the importance of tourism and its social, cultural, political and economic relevance. Lat week the event included a round table debate on Tourism and Social Responsibility, including participation by Lourdes Ripoll, Senior Vice President of Strategy and Sustainability at Meliá Hotels International.