Glass correlates with higher levels of carbon emissions, but doesn't cause it.
At Silo, wine causes a lot of headaches. Their solution is to use wind-powered transport ships. Then, they turn the waste glass into tiles. So, the carbon footprint is low.
If you can tolerate slow shipping, then the carbon footprint can be reduced. So, well-preserved food in glass (as opposed to, say, flowers in plastic) can have a lower environmental impact. Plus, glass can be reasonably reused or recycled.
This is delusional. Think about how much heat energy it takes to melt glass to make tiles. There is no way this has a low carbon footprint. I applaud the PR team at Silo for convincing their customer base of this fantasy. The lifetime carbon footprint (from manufacturing to "recycling" / disposal) is much lower for plastic compared to glass. And, I write this post as someone who tries to reduce my plastic footprint as much as possible.
"Three Dutchmen decided to take a step back to make a leap forward and established Fairtransport, the world’s first modern emission-free shipping company. Silo gets coffee via Fairtransport – it still has to be transported from the landing port, but it is a huge saving on energy. It’s a fine example of imaginative thinking. The small fleet of traditional sailing ships used by Fairtransport includes the world’s only engineless sailing cargo ship. The focus is on transporting special products which are organic or crafted traditionally – such as olive oil, wine and rum. In addition, the fleet is raising awareness of the huge amounts of pollution created by the modern shipping industry and is affecting positive change in the way goods are shipped around the world."
McMaster, Douglas. Silo (p. 71). Leaping Hare Press. Kindle Edition.
At Silo, wine causes a lot of headaches. Their solution is to use wind-powered transport ships. Then, they turn the waste glass into tiles. So, the carbon footprint is low.
If you can tolerate slow shipping, then the carbon footprint can be reduced. So, well-preserved food in glass (as opposed to, say, flowers in plastic) can have a lower environmental impact. Plus, glass can be reasonably reused or recycled.