But if commuters were hoping to be treated on an equal level with European livestock, they were soon disappointed.
Defying the temptation of air-conditioning, the publicly owned transport company decided to hand out 14,000 deodorants earlier this week instead.
Reactions were mixed: While the smell-concealing gifts were warmly welcomed by Vienna commuters and were “snatched out of our hands,” according to a spokesman for the company, some wondered about the underlying message of the initiative. To some, the slogan of the campaign may very well have been: Shower more — or at least use some deodorant.
While the use of air-conditioning has been on a steady rise across the globe in recent decades, growth rates in Europe have lagged far behind those of China and the United States. As summers are now getting hotter in Europe amid rising temperatures across the globe, however, European cities are finding themselves increasingly forced to upgrade their cooling systems on public transport and in offices, too.
Demographics and the location of the United States' southern states may help explain Europe's slow AC growth rates, but European city officials also frequently emphasize that they want to avoid shifting entirely to a U.S.-style approach to air-conditioning.
Their main concern is that the sort of cheap AC that's commonly used in the United States is about 25 percent less efficient than the usual European systems.
But the broader question here is also whether air-conditioning is really needed, especially as countries seek to reduce their carbon footprints. Already today, "328 million Americans consume more energy for cooling than the 4.4 billion people living in all of Africa, Latin America, the Middle East and Asia,” a recent report by the International Energy Agency (IEA) cautioned.
And those numbers are expected to grow disproportionately in the coming years, with cooled areas in commercially used buildings expected to rise from 60 percent to more than 85 percent by 2050, even as the number of buildings itself will increase massively.
Climate change and economic growth in developing nations alone are only some of the reasons behind the world's growing appetite for cool air.
“Cultural factors also seem to affect the attractiveness of ACs in some countries; for example, Europeans have generally been less inclined to install an AC compared with their American counterparts until recently, though this is now changing, with AC ownership in Italy, Spain, Greece and southern France rising rapidly in the last decade,” the IEA wrote in its most recent assessment.
While AC was considered an unnecessary luxury in much of Europe until recently, public opinion may now gradually be changing, according to the IEA.
Still, capitals such as Vienna and Berlin have a long way to go to match the AC-density of North American cities. So far, only 3 percent of households have air-conditioning in Germany.
In the United States, it's 87 percent.
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