In addition to the issues in Asia and Australia (not regions where we get our bananas in the US), the Central and South American regions have had terrible growing conditions several months ago. It usually takes up to 2-3 months for those effects to affect our market. Too green bananas would indicate that they wanted to at least pick and send something to market, even if they aren't ready. But, it is also a sign that perhaps they did not use their usual chemicals to speed up the ripening process.
Organic bananas from Mexico usually show up a little green, but that is a good thing. No chemicals.
Eat local. Bananas should be a luxury in the US, but they are available for $.39/pound at convenience stores in Minnesota?!? Something is wrong with that. Thanks, but no thanks Dole, et al....
Eat apples. Of course, last years US crop was terrible in most places. Oh well. At least the hops were good!!