Sunday Times

Circular economy or vicious circle?

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● Shortly before her death last year, former environmen­t minister Edna

Molewa described the circular economy as a “trillion-dollar opportunit­y”, with huge potential for innovation, job creation and economic growth.

The concept of a circular economy differs from the traditiona­l linear economy, in which virgin resources are extracted, processed and then dumped as waste. By attempting to extend the life of natural resources by recycling, reusing and recirculat­ing them, the aim is to “close the loop” and reduce waste and inefficien­cy.

As part of the SA-European Union Developmen­t and Co-operation Agreement, the government hoped to cooperate more closely with EU members on circular economy initiative­s — with an initial focus on tyres, paper and packaging, lighting and electrical and electronic wastes.

But there’s a hitch

Noting that nearly 90% of SA’s waste was still dumped in landfills, Molewa said the government had identified several sectors where wealth could be extracted from the so-called dead capital of waste products, notably the plastics sector.

However, some resource economists remain dubious about the benefits promised by the circular economy model and suggest that efficiency gains could produce a “rebound effect” in which cheaper production methods spur companies to produce even more products than before.

Writing in the Journal of Industrial Ecology in August 2018, resource management professors Trevor Zink and Roland Geyer said proponents of the circular economy had tended to look at the world purely as an engineerin­g system, overlookin­g the economic aspects.

“We argue that circular economy activities can increase overall production, which can partially or fully offset their benefits. Circular economy rebound occurs when circular economy activities, which have lower per-unit-production impacts, also cause increased levels of production — reducing their benefit.

“We caution that simply encouragin­g private firms to find profitable opportunit­ies in the circular economy is likely to cause rebound, and [to] lower or eliminate the potential environmen­tal benefits,” they said.

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