Yeah, problems similar to other critical food plants such as the cassava.

A history of too much distribution of planting with cuttings, i.e. clones. Instead of sexual reproduction providing evolutionary variations.

What exactly is the link with the mythical "global climate change"?

N_o, the link to the reality of Global Climate Change? Survival. Erratically unpredictable changes in expected weather patterns immediately endanger the unprepared.

Just because you are a coddled, entitled affluenza shill for the Tobacco Lobby... 'scuse me. For the Carbon Lobby. Doesn't mean the rest of us, the rest of Humanity, have the luxury of ignoring reality.

N_o, the link to the reality of Global Climate Change? Survival. Erratically unpredictable changes in expected weather patterns immediately endanger the unprepared.

rrwillsj,
Your opinions aside, what passage exactly demonstrates the link you presuppose?

N_o, the link to the reality of Global Climate Change? Survival. Erratically unpredictable changes in expected weather patterns immediately endanger the unprepared.

rrwillsj,
Your opinions aside, what passage exactly demonstrates the link you presuppose?

Willis dont need no stinking passages. He makes it up as he goes.