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Disease Outbreak Threatens the Future of Good Coffee

Wired reports on a disease infecting coffee plants across Central America that could lead to shortages around the world. "Regional production fell by 15 percent last year, putting nearly 400,000 people out of work, and that’s just a taste of what’s to come. The next harvest season begins in October, and according to the International Coffee Organization, crop losses could hit 50 percent." The disease is called coffee rust, and it has been damaging crops to some degree since the 1800s. It's not known yet exactly why coffee rust has become such a problem now, but one of the leading suspects is climate change. "Since the mid-20th century, though, weather patterns in Central America and northern South America have shifted. Average temperatures are warmer across the region, with extremes of both heat and cold becoming more pronounced; so are extreme rainfall events." The fungus that causes coffee rust thrives on warm, humid air, and higher temperatures have allowed it to climb to higher altitudes than ever before. But another likely cause is the way in which coffee is planted and harvested these days: the plants evolved as shade-dwellers, but are now often placed in direct sunlight. They're also clustered closer together, which facilitates the spread of disease. "The integrity of this once-complicated ecosystem has been slowly breaking down, which is what happens when you try to grow coffee like corn."

6 of 259 comments (clear)

  1. Coffee is threatened? by Andrio · · Score: 5, Insightful

    Finally, something to unify all Americans against climate change. Democrat or republican, poor or rich... It doesn't matter. We'll all stand together to stop this evil!

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    The Internet King? I wonder if he could provide faster nudity.
    1. Re:Coffee is threatened? by MachineShedFred · · Score: 4, Insightful

      Now only if anything in the article actually led to the conclusion that climate change has anything to do with the increased spread of this disease, rather than massive plantations of a monoculture of genetically near-identical plants.

      But yeah, I'm sure it's climate change that's causing it.

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
  2. Is there nothing climate change can't do? by khallow · · Score: 5, Insightful

    It's not known yet exactly why coffee rust has become such a problem now, but one of the leading suspects is climate change.

    Here's another eye-rolling moment from the chicken littles who can't be bothered to decide what climate change is. From the article,

    âoeThereâ(TM)s increasing evidence that climate change is part of the problem. You find coffee rust striking much farther up the valleys than it used to. Thereâ(TM)s no other plausible explanation,â Baker said. âoeBut what happened last year, and why it was so aggressive and widespread, weâ(TM)re still a bit [perplexed]. And if we donâ(TM)t really know what caused it, itâ(TM)s going to be hard to predict.â

    Another plausible explanation, especially given the more virulent nature of this coffee rust problem, is that it has evolved or a new strain has moved in. That wasn't hard. Note that the researcher is confident that "climate change" is involved, but far less confident that biology is involved.

    This is a researcher in the field making these claims not some ignorant Wired writer. I see this as further evidence that climatology has been taken over by political forces. A scientist makes an overly confident claim about "climate change" and it gets readily and uncritically reported by a high profile news source. And the take away that the reader gets is that their coffee is threatened by climate change. That's a classic propaganda move.

    1. Re:Is there nothing climate change can't do? by khallow · · Score: 4, Insightful

      Funny enough, climate and biology do not operate independently.

      I grant that. But note again, how confident the researcher is in one and not the other.

  3. Re:I don't drink coffee by ShanghaiBill · · Score: 5, Insightful

    It may be both: evolution of the coffee rust driven by climate change.

    Or it could be a lack of genetic diversity in the coffee trees. The fungus can spread through vast plantations of genetically similar arabica trees. The reason the rust has difficulty infecting wild trees may be because of their diversity, as well as their dispersion.

    Disclaimer: I am a tea drinker.

  4. Re:Seriously? by khallow · · Score: 4, Insightful

    Why does ever bible thumper consider it a bad thing to change ones mind about something in light of new data?

    Why does everyone else do that too? I guess because we've evolved not to readily change our minds. Maybe it was bad for us if we changed our minds too much about saber-tooth tigers or poisonous plants. "I think poison ivy changed due to a dream vision I had last night. Let's roll in it!"

    I find it remarkable how anti-scientific some of the attitudes among the supposedly pro-science side are. Here, you are complaining about "bible thumpers" merely because they exhibit a universal human behavior.

    As to your "data", I think it's painfully clear that the researcher (who was quoted on the climate change allegation) is tying coffee rust to climate change in order to sell their story and attract funding rather than tell a more plausible story. Where is the discussion of evolution of coffee rust, bad farming practices, and the presence of more susceptible coffee plants (they need not be at the same farm as the "fine coffee" plants)?