The highest CO2 emissions from tourism was calculated to be from aviation, with 71% of total CO2 travel emissions. This is followed by waterborne navigation (ferries and cruises; 21%) and road transport (private cars; 8%). Aviation is the largest contributing sub-sector, mainly owing to the large number of travellers and the long distances travelled. The highest emissions factors per passenger kilometre were found for cruise ships and ferries transporting cars in addition to passengers. Total CO2 emissions are dominated by Norwegians travelling for HOLIDAYS!!!!! (= NOT BUSINESS!), which contributes 47% of total emissions. The largest share of Norwegian travel emissions is from international aviation (2 286 kt CO2 ) to warm destinations such as Spain, Greece, Thailand and Turkey. International tourists who visit Norway make for 3 273 kt CO2, of which 2 220 kt is from aviation and 949 kt from waterborne navigation. The tourist market with highest emissions is Germany with 441 kt CO2 of which 15%, 48% and 37% come from aviation, cruises and ferries, respectively. Passengers from USA cause the second highest emissions, mainly from aviation (349 kt CO2) and cruise ships (56 kt CO2). Of the total tourist emissions, holiday travel contributes 78%. In 2020, restrictions were put on travel due to the COVID-19 pandemic, leading to a reduction in mobility. As a consequence, CO2 emissions experienced a massive reduction of 60%, which was sustained from late March to at least the end the year. Aviation and cruise ship emissions had the largest emission decreases, whereas road transport emissions in July 2020 were at the same level or even higher than in pre- COVID years. Cruise ships have the highest emission factor, but the emission factor from ferries is of similar magnitude when one also takes into account the transport of cars. Emissions range from 93 to 615 kg of CO2 per passenger-day, or from 199 to 1314 g CO2 per passenger-km, depending on the size, the age and the ship’s capacity configuration