Landfill airspace crisis: why Cape Town must divert waste

It's one of the least glamorous but most pressing challenges facing Cape Town: the city is running out of places to put its rubbish. "Landfill airspace" — the remaining volume available for burying waste — is a finite, dwindling resource. Understanding this crisis explains why recycling and diversion matter so urgently.

What is "landfill airspace"?

Landfill airspace is simply the remaining capacity in a landfill site to receive waste. Every truckload buried consumes some of it permanently. Once a landfill is full, it must be closed, capped and monitored for decades — and a new one has to be found, which is extraordinarily difficult.

Why Cape Town faces a crunch

Several forces are squeezing the city's landfill capacity:

• A growing population generating ever more waste.
• Finite existing sites — major landfills like Vissershok and Coastal Park have limited remaining life.
• Enormous difficulty building new landfills. New sites require suitable land, environmental authorisation, huge investment, and community acceptance — all hard to secure.
• Low diversion historically. Too much recyclable and compostable material has been buried instead of recovered.

The result is a slow-motion crisis: more waste, less space, and few easy options.

Why new landfills aren't the answer

It's tempting to think we can just build more. But new landfills are:

• Expensive — costing vast sums to develop and operate.
• Hard to site — nobody wants one nearby, and suitable land is scarce.
• Environmentally risky — they generate methane and leachate that must be managed for generations.
• A waste of resources — burying recyclables throws away value, jobs and raw materials.

Building our way out simply isn't feasible or wise.

Diversion: the real solution

The only sustainable answer is to divert waste away from landfill in the first place:

• Recycling — recovering plastics, paper, glass and metals for reuse in manufacturing.
• Composting and organic processing — diverting food and garden waste, a huge share of the stream.
• Reduction and reuse — creating less waste to begin with.
• Producer responsibility — making packaging recyclable and funding its recovery.

Every tonne diverted is a tonne of precious airspace saved — and material kept in productive use.

The numbers add up fast

Consider how much of a typical household's waste is recyclable or compostable. Packaging, paper, bottles, cans, food scraps and garden waste together make up the majority. If most of that were diverted, the pressure on landfills would ease dramatically and their lives would be extended for years.

What this means for you

The landfill crisis turns recycling from a nice-to-have into a civic necessity. Every time you:

• Separate and recycle your packaging,
• Compost your organic waste,
• Sell recyclables at buyback, and
• Refuse to dump illegally,

you're directly relieving the city's most stubborn infrastructure problem.

The economic upside

Diversion isn't just a cost-avoidance exercise — it's an opportunity. Recovered materials feed local manufacturing, buyback puts income in people's pockets, and the recycling economy creates jobs across the value chain. Solving the landfill crisis and building inclusive green growth go hand in hand.

Urgent, but solvable

The landfill airspace crisis is serious, but it's not hopeless. The tools to solve it — recycling, composting, reduction and producer responsibility — already exist and are growing. What's needed is for all of us to use them, urgently and consistently.

WasteGo Green is part of the diversion solution, recovering material and keeping it out of landfill every day. Join us — recycle, sell and divert — and help give Cape Town the breathing room it needs.