Where is sustainability a purely technological problem?
I admit that I have a long way to go on education in the world of sustainability — I am going to be minoring in it, so I apologize if this is an ignorant question.
From my understanding, a large portion of sustainable solutions are locked by political and economic barriers much more than technological. For example, the technology to recycle (or repurpose into other forms of energy) already exists, but is far from possible in most of the world due to economic and political barriers, like it being cheaper to make virgin plastic than to recycle and oil companies lobbying to continue making plastics.
At least within the United States, I am noticing that there is a lot of technology that I think would be beneficial, and even low cost, but it remains largely politically blocked or slowly implemented. From my understanding, I believe that the most significant developments would serve low income countries in cheaper ways than what is being done already, and I see this working because there is both political and economic benefit for much of the technology that could be developed.
I am curious on your input, and I want to clarify that I am thinking worldwide and on any area of sustainable action.
TLDR:
What is the technology that could make a real difference that remains undeveloped that is hard to argue against politically and economically?