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Load of international tourism on climate underestimated four times

International tourism in Europe associated with the maximum amount of greenhouse gas emissions

Environmentalists have estimated the amount of greenhouse gas emissions, which from 2009 to 2013 resulted in international tourism, and found that previous studies underestimated the volume of emissions. It turned out that the greenhouse gases are about four times more than the earlier thought – up to 4.5 gigatons of carbon dioxide equivalents per year, the researchers report in Nature Climate Change.

One of the reasons for global climatic changes on the planet as a significant increase in the concentration of greenhouse gases in the atmosphere: carbon dioxide, methane, water vapor, ozone, nitrous oxide and some others. Increasing the concentration of dangerous climate. To reduce at least the amount of carbon dioxide that can be absorbed by the human body. .

It is known that one of the sectors of the economy, which produces large amounts of greenhouse gases, is an international tourism. According to the previous data, the carbon footprint of global tourism is accounted for by 1.2 gigatonnes of CO2 equivalents in 2005 and 1.1 gigatons in 2010. It is about 2.5-3 percent of the total mass of carbon dioxide that is emitted into the atmosphere by anthropogenic factors. However, these data took on account of all the components of tourist activity, which has been somewhat understated. In addition, the active development of tourism could increase the carbon footprint of their activities in this area in recent years.

To Refine the data and get more relevant information about the impact of tourism on the Earth’s climate, environmentalists from Australia and China under the leadership Arunima Malik (Arunima Malik) from the University of Sydney. For this, the researchers used official data of the economic impact of tourism (tourism satellite accounts). These data include information on transportation, maintenance of hotels, the production of food and Souvenirs.

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It turned out that the total carbon footprint of international tourism in 2009 was approximately 3.9 gigatonnes of CO2 equivalents, and by 2013 had grown to 4.5 gigatons. It is approximately four times greater than in the previous works, and these emissions account for about eight percent of the total.

Load of international tourism on climate underestimated four times

International tourism associated with the maximum amount of greenhouse gas emissions

M. Lenzen et al. / Nature Climate Change, Two thousand eighteen

The largest carbon footprint in Canada (75 megatons CO2) and Mexico (48 megatons). Carbon footprint from travel of Russian tourists is very large: in particular, trips from Russia to Ukraine (7.8 megatons) took eighth place at the car footprint in the world and second in Europe.

According to scientists, 72 percent of all generated by tourism. Tourism also leads to the emission of large quantities of methane. The proportion of other gases, according to scientists, is irrelevant. And the main three greenhouse gas sources were transport (primarily terrestrial), shopping, as well as the production and cooking of food.

Scientists say that the active development of tourism can only lead to further production growth of greenhouse gases in the near future: if the same growth rate to 2025, the emissions could increase by 40 percent relative to today’s level. Therefore travel companies should pay attention to the development of tourism and related services.

Search more useful for climate technologies. For example, estimating the carbon footprint of medical institutions, scientists discovered that greenhouse gas emissions can be reduced significantly if the transition to organic anesthetics.

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