I also don't understand why plastic in a landfill is all that bad. The fact that it is biodegradable is a positive here - it won't break down into toxic substances.
Evaluating environmental impact is a complex process. Everything we do has multiple consequences. I believe global warning is the most serious environmental disaster we are facing today. Plastics use significantly less energy in production and transportation (because of lower weight and less material needed.) With an eye toward AGW, how can paper packaging and burning refuse be seen as a responsible choice?
It is critical that we consider the effects of our consumption habits in a serious and reasonable fashion. I just don't see the anti-plastic panic to be rational or constructive.
Plastic takes oil and therefore carbon out of the depths of the Earth, until it eventually gets burnt, biodegrades or otherwise degrades and turns into CO2 contributing to global warming.
Trees instead take CO2 from the atmosphere, turn it into solid cellulose that we make paper from, until the paper biodegrades or gets burnt and returns to the atmosphere from which it came in the first place. If a new tree is planted for each tree that gets cut for paper, as is done in most developed countries, paper can be carbon neutral (it all depends on the source of the energy used for processing it).
My city (Washington, DC) opted for a 5 cent tax on plastic bags. This caused use of them to drop 80% and been considered a huge success.
...is something you just made up.
Most plastics aren't, and some of the ones that are marketed as biodegradable need to be put in a high-temperature bioreactor or something equally ridiculous in order to break down in a useful timeframe.
> I also don't understand why plastic in a landfill is all that bad.
Some portion of everything placed in a landfill will get in the water, but this is particularly true of lightweight and slow-to-degrade plastics.
> Plastics use significantly less energy in production and transportation ... With an eye toward AGW, how can paper packaging and burning refuse be seen as a responsible choice?
Incinerating garbage is an energy source in places like Norway.
https://www.theguardian.com/environment/2013/jun/14/norway-w...
The problem is that most of these biodegradables take a few years to fully break down, which is slower than the amount we keep on adding garbage in the landfills. So it's a net positive inflow into the landfills.
Remember, everything we do has multiple consequences.
Landfills are a poor solution, better are clean trash burning facilities[1] that also produce energy as well as proper pre sorting.
China is building the largest in the world which is to open in 2020. [2]
[1] https://www.nytimes.com/2010/04/13/science/earth/13trash.htm...
[2] https://www.sciencealert.com/china-is-building-the-largest-w...