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They are right to have concerns. There was an island where they used poison to kill all the mosquitoes because it was a big problem. All the mosquitoes dies an
by DoreenMichele 6y ago
They are right to have concerns.
There was an island where they used poison to kill all the mosquitoes because it was a big problem. All the mosquitoes dies and then all the things that ate the mosquitoes died.
And then all the things that ate things that ate mosquitoes died. And it went through a few more layers of this, like some modern day version of the Biblical plagues.
That doesn't mean we shouldn't do it. It just means it is correct to not take the decision lightly.
(Unfortunately, I've never found a good write up of this true story on the internet. I read it long ago back when dinosaurs roamed the earth and I had a bright yellow rotary phone and got information printed on dead trees.)
- est31 6y agoYou don't have to extinguish all mosquito species. It's enough to only target those which can carry diseases. Ideally one would engineer mosquitos to avoid humans because of their smell.
- bamboozled 6y agoMaybe we could also considering modifying ourselves to be less susceptible to mosquitos. Including helping people who live in poverty to have better housing and medicine so their less susceptible to Malaria ?
- jackson1442 6y agoModifying ourselves leads into the messy territory of bodily autonomy and consent. You can see this pretty well in the anti-COVID-vaccine crew. I feel like it'd be much more popular to modify mosquitos than apply some modification to humans. Not to mention the ethical (regarding equity) concerns: disease from mosquitoes affects poverty-stricken areas the most, yet the people with the most access to these bodily modifications or procedures are going to be from wealthy countries.
- jcims 6y agoMosquitoes are a rather distinct element in the natural world and it just seems unlikely that we are capable of understanding the full set of downstream effects of eradicating them entirely.
- bamboozled 6y agoI actually was talking about our behavior, not our actual genetics or biology. My understanding is that a lot of the diseases we want to kill mosquitoes for are also more likely to affect people in developing countries.
- andreareina 6y agoThere are few developed countries in the tropics. Singapore is one, and dengue is a concern here. I understand that the way it's mostly kept under control is through a lot of spraying, which isn't exactly great.
- incompatible 6y agoPerhaps it would be possible to modify mosquitoes so that they don't need blood to reproduce. Other insects manage it somehow.
- grapecookie 6y agoobviously this mutation would not last.
- Turing_Machine 6y agoRight. There are thousands of species of mosquito, most of which don't carry human diseases. Of the ones that do, many of are of African origin -- they evolved there along with us (and the diseases they carry). They are thus essentially invasive species in the rest of the world. The nice thing about potentially using CRISPR-based gene drives to extirpate (e.g.) Aedes aegypti is that it would affect only that species, unlike our current pesticides which tend to kill insects of many different species indiscriminately.
- bamboozled 6y agoCommon sense must tell people that whether we like mosquitos or not, they're part of the food chain. A food chain which is already stressed due to climate change. Scientist who are eager to take out mosquitos sound more like kids who are eager to play with their new gene drive rather than consider the actual impacts.
- tylermw 6y agoNo, scientists who are eager to take out mosquitos want to do it because it will save millions of lives. People have been dying of malaria for millennia—climate change has nothing to do with this particular issue/solution.
- bamboozled 6y agoWe're all very concerned, but we don't really spend very much money on Malaria treatments, relief and vaccines overall. Especially in the developing world. There isn't even really much urgency to do anything about it. No operation warp speed to help save hundreds of thousands of lives a year. It's almost just like a fun topic to make people feel better about themselves. I've read more about how transmission of malaria works and basically mosquitoes carry it from biting infected humans then pass it to other humans, it's not that mosquitos are evil, they don't even know what's going on. I think there is a question of ethics involved personally, that's because if mosquitoes had the power to wipe us out, we wouldn't be that happy if they decided to go ahead with the plan.
- mNovak 6y agoWhile I agree it's likely, 'common sense' is also not science and we shouldn't take as a given that they are an integral part of the food chain. Pest species do exist. Saving lives is generally a strong motivator, so it's worth considering the possibilities.
- Salgat 6y agoDo you have a source for this? I linked below the best I could find, which makes no mention of any issues with them wiping it out. https://www.cnn.com/2019/07/18/health/asian-tiger-mosquitoes-guangzhou-intl-hnk https://www.cnn.com/2019/07/18/health/asian-tiger-mosquitoes...
- DoreenMichele 6y agoPossibly Sardinia: The eradication of malaria helped Sardinia improve its public health programs and also paved the way for socio-economic development. But at a huge environmental cost that is incalculable. Some farmers accused the DTT of killing their livestock, bees and also fish. https://totalsardinia.com/malaria/ https://totalsardinia.com/malaria/ Sheepherders, fish farmers, and beekeepers blamed their dead sheep, dead fish, and dead bees on DDT spraying. https://www.wanderingitaly.com/blog/article/785/sardinia-and-the-history-of-malaria https://www.wanderingitaly.com/blog/article/785/sardinia-and... https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2819864/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2819864/ Edit: Odds are good I read about it originally in Reader's Digest in the late 1970s or early 1980s if you want to find a dead tree copy at a library.
- yardie 6y agoExcept there are multiple species of mosquito. Only 1 of them is a primary carrier for malaria. And if it disappears another mosquito in the family will replace it.
- Jedd 6y agoThis seems alarmist. The citation you provided elsewhere (for Sardinia) was for some DDT spraying - which was obviously not targeted exclusively at mosquitoes, and explains why lots of other things died. Targeting the very small set of mosquito species (that carry malaria) with something that will wipe them out within a few generations (under 12 months) seems tremendously safe, because a) it's a small subset of the total mosquito population, b) you can test this in isolated (eg. island) environments, and c) by the very nature of this, rollback is easy -- once the species has died out locally, if needed you can quickly & safely re-populate with non-modified specimens.
- DoreenMichele 6y agoIt's not alarmist. Not by any stretch of the imagination. I'm an environmental studies major and I have a genetic disorder. I'm getting healthier when that is supposed to be impossible and it's in part because I'm an environmental studies major and I think of the body as a complex ecosystem. You kill one thing or change one thing and there are always myriad knock on effects. Always. Anytime you do anything that's actually at all effective, there is hell to pay. I am getting better by trading short term costs for long term gains, the exact opposite of what Western medicine typically does. We monetize disease by trading short term gains -- that doctors can claim credit for, justifying their fees -- for long term costs which we politely admit to with multi-page warning materials included with all drugs and then normalize largely ignoring that stuff and taking it anyway. Then when your condition gets worse, they blame it on your genes instead of on the side effects of the harsh drugs they have been poisoning your system with for years and years. It's possible to make targeted changes to an ecosystem, but it's not easy and even if you get it right, there are costs involved. Managing such change is hard and there tends to be hidden costs that the experts want to disavow responsibility for and they can generally get away with it because cause and effect can be hard or impossible to prove. I hope they cure Sickle Cell. I hope they eradicate malaria. Parasitic infections are pretty awful. I hope they do it in a way that doesn't involve millions of Africans being thrown under a bus so Westerners can feel like heroes while hand waving off the human costs for the locals which Westerners have a long history of running rough shod over on the excuse that we imagine we are superior to them or something.