WTTC Unveils Groundbreaking ‘Water Roadmap for Travel & Tourism’ Report: Global Water Intensity Drops Amid Sector Growth. The World Travel & Tourism Council (WTTC) launched a revolutionary report today, revealing a continuous decline in the water intensity of the global Travel & Tourism sector as it experiences rapid growth. Despite contributing significantly to the global economy, accounting for one in 10 jobs and 10.4% of global GDP in 2019, the sector’s water usage remained between 3.5% and 5.8% of global available freshwater in 2021 and 2019, respectively.