Action Replay – Warming up
The UN has a programme called Sports for Climate Action, described as ‘a global movement harnessing the unifying power of sport to address climate change and build a more sustainable and resilient future’ (unfccc.int). Sport can be adversely affected by climate change, pollution and loss of biodiversity, but supposedly it can also be an agent for promoting collective action. Sport, it is claimed, needs to adapt to the impacts of global warming and also to engage its global audience to make their own contribution to fighting climate change.
All very well, of course, but a look at some of the environmental impact of professional sport paints a rather different picture. In motor racing, Formula 1 (F1) will be moving from the use of fossil fuels to an allegedly sustainable fuel from next season, fuel which might then be used in ordinary cars. But, as noted in the November 2025 Science Focus, there are major issues involved here. The new fuels may be low in carbon emissions but still emit many other pollutants, hence not really being sustainable. The synthetic fuels may in fact involve CO2 emissions in the process of producing hydrogen from natural gas, so the overall climate impact is not at all clear. In any case, fuel from races is only a tiny part of F1’s total carbon footprint, with massive amounts of global travel playing a far larger part. Carbon emissions in the logistics side of F1 have already been reduced, but there is still a long way to go to achieve real sustainability.
Another example would be this year’s football World Cup, which will be played in the US, Canada and Mexico, in stadiums from Vancouver to Mexico City, so meaning much long-distance travel. It will involve 48 teams and 104 matches (sixteen more teams and forty more games than previous tournaments). Scotland, for instance, will play their group matches in Boston and Miami, which are well over a thousand miles apart. One estimate is that the tournament will generate over nine million tonnes of CO2 equivalent, almost double what previous ones have produced.
In addition, the heat will mean that many of the venues will be effectively unplayable during the afternoon. Many top players have already suffered while playing in hot conditions in the US, as in last year’s Club World Cup, and also there will be hundreds of thousands of supporters, plus backroom staff and media workers who will have to endure extreme heat at many matches, reaching over thirty degrees or perhaps even forty. FIFA are apparently keeping ‘an open mind’ on all this, which presumably means they won’t be making any significant decisions quite yet, if at all.
So global warming can affect not just people’s living conditions, but various kinds of leisure activity too. And sport can exacerbate climate change, as well as (just possibly) help to combat it.
PB