Coffee "rust" is result of climate change?
That is what an article asserts. Maybe so, maybe not but it does a good job of explaining the problem and the consequences.
The article appears in The Guardian under the title Latin America: how climate change will wipe out coffee crops – and farmers.
[T]he rust cannot survive temperatures below 10C. In this region of Nicaragua it usually occurred only below 1,300 metres. Up in the hills, cold nights and drier weather kept the disease at bay. And so that's where the coffee farms are.
Most of the people I met said they had never seen it until three years ago: some believed it had been deliberately sprayed from the skies by aircraft. Some thought it had spread from the banana trees that shade the coffee plants and provide crucial food for farmers. But most agree that in recent years the weather has become hotter, wetter and less predictable.