Government expanding single use plastics ban


Polystyrene, the soft white material surrounding our larger electronics when we get them from the retailer is something we have a love/hate affair with. Great for protecting sensitive goods from knocks, light weight and widely used. But at the same time a waste management nightmare, which breaks up easily that is causing massive environmental grief.

I support the banning of polystyrene. Anyone who has torn apart a piece of it will know how a mass of bound little soft white balls can shred into thousands of them instantly. Weightless, non-biodegradable for hundreds of years in the natural environment and in New Zealand alone each year many thousands of kilogrammes of polystyrene is manufactured and subsequently sent to land fills or discarded. It can be found all over the place – streams, on beaches, roads, and elsewhere, transported by the wind from loosely sealed bins or skips.

Now polystyrene food containers are among the targets in the next wave of single use plastics set to be banned by the Government. They join a host of others including

Although this is not as yet targeting the polystyrene that is used to transport electronics such as desktops, television screens, printers and so forth, it is a good start.

I also support the other initiatives being announced by the Government, which include:

  • A National Plastics Action Plan
  • Improving national plastics data collection
  • Measures to mitigate environmental and health effects of plastic
  • Innovation of products using plastic waste

Back in December 2017 China announced it was going to stop accepting other nations rubbish from 01 January 2018. Whilst some were concerned that it would be taken negatively, I was pleased because I want nations to take responsibility for their own rubbish, including New Zealand. Why should China take our rubbish when 1.5 billion people create unknown tonnage of it each day, leaving authorities with a waste problem – never mind the associated environmental problems – that I doubt most people in the west could honestly comprehend?

But with it came challenges – and opportunities – which I now attempt to discuss.

New Zealand is one of the biggest consumers per head of population in the world of resources. And although responsibly it seeks to improve the state of our waste control, it is noted by tourists and locals alike that not nearly enough is being done.  The challenges come in part from needing to dial back what we create, which will mean necessary changes in consumption patterns. It will mean a more regulated consumer environment. Changing the consumption habits of a life time can be challenging, but New Zealand will have to try if it is to seriously reduce the waste out put being created. It will also create questions about what to do with existing waste, especially since a storm on the West Coast in March showed how easily an old refuse tip can be destroyed by a flooding river, and the consequences of old rubbish in the environment.

But there are opportunities – some controversial and others quite logical. They include the potential for waste to energy plants, which I personally like the idea of if the problem of fly ash can be successfully dealt with. One proposal already attempted was for a W.t.E. plant on the West Coast which would generate enough power to make the province self sufficient. But these have generated controversy, not least because they do not actually encourage less waste creation – though it was pointed out to me that existing waste could be removed from landfills and carted away to these stations and when empty the landfill is rehabilitated.

Perhaps more logically plastic bottles could be swapped out for glass bottles as we used to have for milk and fizzy drinks. How easily this could be reinstated would depend on how companies like Fonterra and Coca Cola react – would they come on board? Or would in the case of Coca Cola, they look to aluminium as an alternative to plastic? Which creates its own opportunities and issues.

Reducing harm from waste: Product stewardship


Product stewardship is an environmental management strategy for a product through all stages of its life. From when it is designed, through its production to the end of its life, product stewardship requires all who are involved in the life cycle of a product to to take responsibility for its environmental impact.

A product stewardship scheme is being investigated by the Ministry for the Environment, which is now taking public submissions on the matter. Instead of using the linear economy model which promotes the current destructive and wasteful practices, the circular economy is viewed as a more responsible model. In a linear economy natural resources are taken from the ground, they are made into something in a factory, which is then used by humans before being disposed of. In a circular economy goods are manufactured, the consumer uses them before they get returned to the manufacturer. The manufacturer will then ensure that the valuable components such as wiring, microchips and so forth as well as valuable elements such as gold, copper, silver and palladium which make up the device can be extracted and reused.

This makes logical sense for a range of products that are either resource intensive to make. One such example is aluminium which requires a smelter. These typically require many megawatts of electricity to run so that the smelter pots can melt it. Recycled aluminium is much less energy intensive to melt down and can be reused many times over.

There are a range of environmental and economic benefits that have been identified by the Ministry. There is scope for significant technological innovation, development of new processes and improvements in efficiency that can be found.

It has taken awhile to get this far. The first serious move to address this growing problem was in 2008, when the then Fifth Labour Government introduced the Waste Minimisation Act 2008. It set its purpose down as thus:

The purpose of this Act is to encourage waste minimisation and a decrease in waste disposal in order to—

  •  protect the environment from harm; and
  • provide environmental, social, economic, and cultural benefits.

This seems a rather outdated purpose for the Act. Protecting the environment from harm is obvious, but it could have defined harm, which I have assumed to mean “harmful waste and waste making practices in the natural environment”. The second part is also quite vague and extremely broad. As with the previous part I have tried to be more specific and therefore clarify “environmental” as the natural as well the man made environments (urban areas, significant human activities); “social” as society wide in terms of health, education, and so forth. In terms of economic gains, I look at the potential for energy development, technological innovation and potential export opportunities – New Zealand prides itself on being clean and green but shows reluctance to take advantage of the opportunities afforded by the more proper management of waste.

I hope that something serious comes of this. New Zealand cannot afford further dilly dallying on its environmental reputation. Tourists are starting to see us for what we are – a nice nation with a few dirty secrets – and they are saying so to their families and friends when they go home. If we want those people to come as visitors we need to do better. If we want “clean and green” to be honest, we need to do better. This is as good a place as any to start.

The need to move against e-waste


Earlier yesterday, I was watching a documentary on Ghana’s electronic waste (e-waste) problem, which explored Abgogbloshie, an e-waste dump near the capital Accra.Situated on the banks of a river the dump takes tons of discarded computers, electronics, electrical parts and arrive there each year from Europe.

In a highly toxic environment, the burning of the plastic around the electronics exposes them to cancer causing dioxins that are released in the toxic smoke plumes. Fine particulate – not reported in the documentary – will most likely be falling down wind of the plume. And at ground level the cadmium, mercury, lead and other highly toxic substances from the crude dismantling of old and unwanted appliances will be accumulating in the ground where it has already reached levels 100x more than United Nations safety recommendations.

Thousands of kilometres away in New Zealand, we generate 90,000 tons of e-waste each year. Only about 1% of which – or about 900 tons – is actually recycled. The rest – computers, smart phones, printers, televisions, washing machines, microwaves among other items – is dumped at refuse stations, on the street and so forth.

I have opined about this before, but I am frustrated with the glacial action in Parliament to enact measures to deal with e-waste here. They could easily be including recycling programmes, product stewardship policies that result in a pathway from manufacture to end use, establishing places where the rare earth minerals can be removed from the devices and reused. The figures from New Zealand alone would support such moves – 600 tons of copper; 600 kilogrammes of gold; amounts of palladium, rhodium, silver and other minerals with economic value.

There are 118 elements in the current version of the Periodic Table of the Elements. 60 of them are used in some form or another of electrical components or electronic devices. Some like Niobium and Argon are not known to be toxic, but others like Cadmium and Tellerium are not only carcinogenic, but tetarogenic (causes defects in babies) as well. Given that the hazards of e-waste dumped in western nations as well, are often not well understood, it is difficult to imagine anyone in a poor country like Ghana wearing personal protection. This would include equipment such as gloves, boots, or taking measures such as washing their hands.

This is not sexy in the sense of getting public interest, but it is necessary, and when one thinks about how we source minerals a case for linking to climate change can actually be made. As with a lot of elements, many of the rare earth minerals come from mines in Africa, South America and Asia where environmental laws are lax and there is no requirement to remediate the land after mining. To create these mines vast tracts of potentially healthy forest are going to have to be wrecked and the flora and fauna in them displaced.

As with other forms of waste New Zealand needs to own its e-waste and deal with it. Expecting other countries to clean up our mess is simply not an option.

 

Escalating the war on waste in New Zealand


Just over a year ago I mentioned the decision by China to stop taking New Zealand waste, which was valued at over N.Z.$21 million per annum. It jolted people into realizing that we cannot and should not expect other nations to take our waste, or that we somehow have the right to shirk our responsibility to the environment. A year later, with an escalating push to remove single use plastics from our society, it is time to examine where else there has been progress made.

The drive to get single use plastics out of New Zealand stores is just a small part of what should be a much larger campaign. Much plastic waste such as the bags that components such as headphones, computer mouses and so forth come in, are plastic designs that simply get ripped open and are not usable again. Bubble wrap is another source, though if not torn it can be reused.

Cardboard and paper are major sources of waste, though perhaps one of the better known sources of recycling successes historically has been aluminium. When I was a child in the 1980’s and early 1990’s, there was an aluminium recycling programme. It simply relied on people collecting all of the aluminium they used and transporting it to a recycling drop off point, at which they were paid by the kilogramme. Unfortunately there was a collapse in the price of aluminium which made the programme uneconomic to continue. Having seen its success, this is one that I believe would be welcome to return. Aluminium production is hugely energy intensive and the New Zealand smelter at Tiwai Point requires 570 megawatts of electricity to operate.

From conversations I have had recently with Environment Canterbury (Canterbury Regional Council)and Christchurch City Council, there is a need for more Ministry for Environment leadership in terms of giving direction. Before that happens though, there needs to be an increase in internal resourcing at Ministry for Environment, whose website has a lot of information on it, but which in many cases has not been updated or reorganized for several years and is now dated. The reasons for saying this are because there was a distinct lack of direction on waste management under the previous Government, and during that time other countries noticed a decline in our performance as an environmentally responsible nation.

The conversations with ECan and Christchurch City Council revolved around electronic waste, which continues to be one of the lesser known, but rapidly growing waste sources. Earlier articles published here indicate the depth of the problem and some of the potential solutions. Both councils were in agreement that it is a major and growing problem. They had concerns though about how easily waste could be recycled given the costs of transporting and processing, how to dispose of the more toxic substances such as cadmium from the cadmium nickel batteries that are now found in a lot of devices.

There are some positive, albeit relatively small scale, projects happening such as the Queenstown Airport runway and apron resurfacing, which is using a composite mix of waste printer toner and recycled glass. Others include a tyre recycling project at Rolleston which will involve the construction of a plant that manufactures diesel from the roughly 1.5 million waste tyres around New Zealand. It would eventually become the processing centre for tyres from around the country.

 

 

 

 

 

Time to burn plastic?


The debate over whether to burn plastic in New Zealand has come to the surface again. The debate, whilst not new, comes back to light as the country tries to grapple with a plastic overload.

There are several potential reasons for doing so. It is a very cost effective way to dispose of waste and there are numerous instances of overseas countries, particularly in Scandinavia doing so. Another reason is that waste can be burnt to create energy, thereby potentially supplying heat to heat water as is done in Denmark or generate electricity.

In the first instance, no, I do not believe we should be burning plastic. There are several reasons for this:

  1. Plastics may release dioxins, which are potentially cancer causing into the atmosphere
  2. Plastics have recyclable uses such as being used as bitumen on roads, according to trials carried out in India
  3. Reducing the plastic in our lives should come down to the question of what purposes we really need it for and making all that we deem necessary to have recyclable

But just for a couple of minutes, let us suppose we did decide burning plastics was necessary. New Zealand has strong rules under the Resource Management Act 1991 around the discharge of pollutants into the atmosphere.

A couple of potential issues exist around what kind of incinerator could be used. The first one concerns the use of incinerators. There are only three high powered incinerators (those that can burn material at temperatures above 800°C in New Zealand and the National Environmental Standards for Air Quality (2004) forbids the construction of any more. Lower powered incinerators are known to exist, but would they be powerful enough to do the job?

The same N.E.S.A.Q. set limits on Ozone, Sulphur Dioxide, Nitrogen Dioxide and Carbon Monoxide as these are significant contributors to air pollution. They have a range of potential health effects in large quantities.

The second concerns our international obligations including, but not limited to climate change. Would we be in breach of those obligations by having incinerators simply burning up plastic waste?

Various attempts to get such plans underway have been canned in the past. In one such case Olivine, , was attempting to recommission the mothballed Meremere coal fired power station as a waste to energy plant that among other waste, would have used plastics. That was in 2000.

Perhaps the biggest challenge is a combination of government policy, but also the fact that in the last few years the range of plastics that can be recycled in New Zealand has been significantly increased. When the recycling triangle scheme where a triangle with a number between 1-6 signifying its suitability for recycling first appeared on plastics, the range was quite poor with only Classes 1-2 being eligible – 3,4,5,6 had to wait. It has improved now – only to be replaced by a laissez faire attitude to recycling .

New Zealand needs to address these issues before it can make a decision on whether or not to burn plastic.