Just to add my 2 cents, sometimes we over think / over do too much in wanting to force things. Tobacco is when left alone a no brainer in air curing. It's pretty much going to happen no matter what you do or where you are IN TIME, we are too often trying to force that time factor. Most everything we know today and the process we're trying to mimic were all just port to ship logistics factors that happened by circumstances of handling and climate vs intentional doing. This isn't rocket science, were trying to make a leaf die and rot... Trust me that's not that hard.
That said, trapped chlorophyll, either they were not ripe or they dried too fast. Neither really matter though. Where we are is how to fix and how to prevent it next time.
So in my simplistic thinking...
I wouldn't toss those yet, their a good science project at this point for learning.
Rehydrate them with a sprayer and leave them hang, I'll bet they start turning again and you may need to do that MANY times if you leave them in their current location. But is your storage space even suited to curing?
Early harvesting / too much N makes curing difficult but you CAN compensate for both with a little doing...aka humidity, air flow, time.
You may find your flighting localized climate I see north Ohio, the relative H there right now is 75% temps 78 but you artic may be much hotter and H much lower in the heat space (betting a H of 30% or less). Check this, get a gauge it's very important.
Find a species better suited to where you are. Some variations do better or are easier to manage like Sobo for example, short season, fast grower, super fast easy curing, your nearly yellowed out before pulling it off of the plant.
I bet your find your storage humidity is too low.. if you were to get some type of chamber going like a cheap pop-up green house or frame out a spot in your attic for plastic sheeting and get a $20 ultrasonic fog machine and low fan you'd get better results overall. Shoot for a H of 70%-80% but with GOOD airflow, if not you've got a mold chamber.
Or move it to an outside covered area, your 75% out door relative humidity shouldn't be a problem, but it needs to be stable and protected from weather and air flow.
You can also just leave them be it may take MONTHS (a season change +) but they'll change over time after enough humidity creeps into play.
Experiment with your problem, collect knowledge in doing it, learn from the mistake so you don't repeat it.
