Dams in South Africa’s Cape Town are half of what they were this time last year as the city continues to battle drought. Last year’s shortage gave the city the driest summer in 100 years. Unless Cape Town has a miraculously wet spring, the summer of 2018 seems set to achieve some unfortunate new records.
Slowing down residential water use is obviously hugely important – residents consume 65% of the city’s water. But to get residents to use less, the city’s management must get residents’ buy-in. This can only be achieved if there is trust and trust will only be developed when residents believe that the water authority is handling restrictions in a way that is necessary, effective and fair.
Australian researchers studying household water use found that people’s willingness to save water relates directly to the trust they feel in the local authority promoting water savings. The researchers also drew on a Mexican case study which found that residents who trusted the local authority in a town called Sonora during an eight-year drought were much more likely to save water.
These, and other studies, show that trust is built: when restrictions are equal to the severity of the drought; when no one gets away with wasting water; and when there is no favouritism towards certain sectors or users.
To build trust, the public needs to believe that restrictions are:
Queensland, Australia, for example, ran a campaign called “Target 140” during their worst drought in 100 years.
The aim of the campaign was to reduce water use to 140 litres per person per day. One of the greatest hindrances was that people had already endured two years of water restrictions. So they felt despondent that their best water saving efforts hadn’t been good enough and were reluctant to save even more.
But the campaign became a success after the Queensland water commission began showing residents how dam levels were dropping. It was able to convince customers that intensified water restrictions were absolutely necessary.
The City of Cape Town has done a good job in covering the bases when it comes to explaining water restrictions in terms of their necessity and their effectiveness. But it hasn’t done that well in explaining that water restrictions are being done fairly.
On the positive end of the scale, the city has done a good job in demonstrating that those who waste water are held accountable. This has been achieved through the naming and shaming of top water users. And water management devices were installed on private properties that hadn’t curtailed excessive use.
But, on fairness, the city has only sporadically communicated the breakdown of water distribution from the 14 dams that supply its water, it’s rarely shown the breakdown of water use per sector and scant mention has been made of restrictions placed on other sectors.
Cape Town is emulating some of the best elements of a save-water campaign. Cape Town’s water saving target is close on half of Queensland’s, which was considered one of the most water-efficient communities in the western world.
If Cape Town wants to beat Queensland’s target, it needs to spend the spring season convincing the public that restrictions are applied appropriately for all water users.
This means changing tack in its messaging. Up until now the dominant message has been aimed at convincing the public that restrictions are necessary and effective. Now it’s time to show that restrictions are fair.
This means showing exactly how water is allocated in the region, breaking down the distribution of water to various sectors and demonstrating that nonresidential sectors are also carrying their responsibility. This information is already in the public domain, but it needs greater emphasis.
David Olivier, Postdoctoral Research Fellow, Global Change Institute, University of the Witwatersrand
This article was originally published on The Conversation. Read the original article.
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