And the same thing is happening in the DR. They are using up the forests for firewood and pretty soon if something is not done about it, the DR will look like Haiti in no time, barren.
Haiti is exporting black market charcoal to the DR. It's gotten so bad they are digging up tree roots in some areas.
Compressed Charcoal is easily produced from ag waste. The US could export it to Haiti, instead of burying it in the ground like they do now..
Charcoal/firewood can also be produced sustainable on the island by coppicing trees. This is where you cut the branches back and it's harvested once or twice a year. You can see this done along roadsides as living fence posts. You can reduce the amount of fuel needed by half or more by using more efficient stoves. They can be made from materials at hand, but some are made from old propane tanks and other heavier materials..
https://www.youtube.com/watch?v=vwujZFK05rY
https://www.youtube.com/watch?v=u9_4SS6RkLs
Potash has zero calcium in it. It is loaded with potassium though.. "Potash" --> "Potassium"
As for a diet of yucca, beans and rice~ who wants to live to 100 on that crap?