Let's start with a definition of Solarpunk
Solarpunk is a literary and artistic movement that envisions and works toward actualizing a sustainable future interconnected with nature and community. ... As a science fiction literary subgenre and art movement, solarpunk works address how the future might look if humanity succeeded in solving major contemporary challenges with an emphasis on sustainability, human impact on the environment, and addressing climate change and pollution. Especially as a subgenre, it is aligned with cyberpunk derivatives, and may borrow elements from utopian and fantasy genres. Solarpunk can risk being greenwashed through aesthetics that give the appearance of sustainability without addressing the root causes of actual environmental issues. (Source)
What do I learn from this?
- We're looking for something sustainable.
- We're looking for something that binds the user to nature and/or community.
- The solution reflects solving today's problems, notably human impact on the environment.
- We're specifically trying to avoid looking sustainable without addressing a root cause of environmental impact.
Let's ask ourselves what the environmental impacts of toothpaste tubes
Toothpaste tubes cannot be recycled in a single stream, or mixed recycling bin that is typical for most recycling services. The reason is that toothpaste tubes are made from layers of plastic and aluminum, and items like that with more than one component are difficult to recycle. ...
My basic question was, what is the environmental footprint of toothpaste? I wasn't able to find all the information I was looking for, but, being a former lab-rat, I love breaking things down and analyzing them, so I filled in the gaps for myself. I'm sure it's not perfect, but it will give you an idea, and hopefully inspire you to switch to tooth powder. ...
Toothpaste Tubes Increase Our Carbon Footprint by 3.5 billions tonnes of CO2 annually. ...
Toothpaste tubes also waste toothpaste. You literally can't squeeze it all out of there. On the internet, the average waste cited is about 5% of the toothpaste. ...
Tooth powder has no water in it, while toothpaste contains 20 - 40% water. This increases the carbon footprint of transportation by about 30%, just to transport it from the factory to the store. (Source)
Full disclaimer, that site is kinda self-serving as they're selling tooth powder in what they claim are reusable containers — some of which are plastic. Still, when you read through it, the author of the article was thorough if not perfectly scientific.
OK, what can we do to believably use toothpaste in a solarpunk world?
We're using a powder. The argument about reducing weight in transport by removing the water at the manufacturing plant and adding it at the point of use is compelling.
From that same point of view, we're looking for a light shipping container. Plastic is definitely light, but plastic has a high cost for pollution and disposal. We're looking for a light reusable container that can hold powder, and when it does need to be replaced, it's disposal footprint is really small. I'm thinking Xiangxi bamboo weaving, which is good enough to hold water. So long as the powder itself doesn't have a consequence (most toothpastes do, so powder can, too, but we'll ignore that for this question), bamboo is about as environmentally cheap as it gets.
I believe the use of woven bamboo to hold tooth powder meets all the identified requirements for Solarpunk. Wholly natural to grow, no heat required to gather, process, or manufacture, and when disposed of it's 100% biodegradable in a short period of time.