Climate from the University of Sydney in Australia say causes over 8 per cent of greenhouse gasses. They also say that this will continue to increase because the tourism is growing. Their study looked at the carbon footprint of many different of tourism. It studied the CO2 emissions from transport, events, hotels, restaurants and shopping. It researched the carbon emissions from producing . The researchers spent 18 conducting the research. They included the tourist of 189 countries. Researcher Dr Arunima Malik said her team analyzed the on the environment of over one million businesses involved in tourism.
The researchers said domestic travel was a cause of CO2 emissions than international or travel. Air travel was the largest of tourism's footprint. The researchers said flying would continue to increase global emissions as people in the world become . The countries causing the most harm were the biggest and richest . The USA, China, India and Germany had the largest tourism carbon footprints. Their carbon emissions will continue to increase as more of their travel. The encouraged holiday-makers and travelers to try and reduce their carbon footprint when on so their travel causes less to the planet.