HLTH 8034 Week 10 DDT Counterargument Brief Example

Counterargument Brief: A Malaria-Endemic District Still Spraying DDT Indoors, Where My Global Case for Eliminating Persistent Pesticides Fails Outright

Student Name

Walden University

HLTH 8034: Environmental Health: Local to Global

Instructor Name

Month Day, Year

Counterargument Brief: A Malaria-Endemic District Still Spraying DDT Indoors, Where My Global Case for Eliminating Persistent Pesticides Fails Outright

My Earlier Argument, at Full Strength

Earlier this term I argued that persistent organic pesticides should be eliminated worldwide. The case is strong. Compounds such as DDT break down slowly, travel far from where they are applied through air, water and migrating animals, and accumulate up food webs, so they reach people who never used them, including communities far from any sprayed field. Because the harm is carried across borders and generations, no single country's choice to keep using them is a local matter. The argument concluded that the case for elimination is global and that remaining uses should end.

The Counter-Setting

Kesari District, a composite, lies in a lowland region where malaria transmission is intense for most of the year and young children carry much of the burden. The district's malaria program sprays the inside walls of houses with DDT once or twice a year, a method called indoor residual spraying, because the local mosquito vectors rest indoors after feeding and have shown resistance to the pyrethroid insecticides used on bed nets. This use is lawful. The global treaty on persistent organic pollutants permits DDT for disease vector control, under conditions, where safe, effective and affordable alternatives are not available, and the World Health Organization's position has been that DDT can be used for indoor residual spraying in those circumstances while alternatives are developed (World Health Organization [WHO], 2011). A review of the global status of DDT found that a small number of countries continued such use, mainly in Africa and South Asia, and that alternatives were constrained by cost, resistance and limited operational capacity (van den Berg, 2009).

Why the Global Argument Fails Here Outright

The global argument does not merely lose force at the margins in Kesari; it fails, because the comparison it relies on is reversed. The harms the global argument rests on are diffuse and delayed: long-range transport, accumulation over years, effects spread thinly across populations far away. The burden the spraying addresses is immediate and local: children in the sprayed houses who would otherwise contract malaria this season. A rule justified by diffuse, delayed harm cannot override a measure that prevents concentrated, present harm in the same people it would expose, unless an alternative of equal effect exists. In Kesari, by assumption, it does not.

The precautionary principle cuts both ways here, and the original argument used it on one side only. It counsels caution about DDT's long-term effects, which are real: a panel review of human health evidence concluded that DDT exposure was associated with adverse health outcomes and urged that its use for vector control be minimized and its exposure reduced (Eskenazi et al., 2009). It equally counsels caution about withdrawing a measure that prevents a deadly disease before something proven replaces it. Invoking precaution only against the pesticide treated one risk as certain and the other as acceptable.

The local setting also changes who bears the exposure. In the global argument, exposure falls on distant people who gain nothing from the use. In Kesari, the people most exposed to indoor residues are the same households protected from malaria, which makes the trade one they bear and benefit from, not one imposed on strangers.

What the Original Argument Must Concede

It must concede that a global elimination rule, applied without exception, would cause net harm in settings like Kesari while effective alternatives remain unavailable. It must also concede that "global" was doing more work than it could carry: the transport of DDT is global, but the balance of harms is local.

What It Can Keep

It can keep the claim that agricultural uses of persistent pesticides should end, since those uses lack Kesari's justification and produce most of the environmental load. It can keep the claim that vector control use should be minimized, monitored for residues and phased out as alternatives are proven, which is the treaty's own direction. And it can keep its central observation about transport: the diffuse harm is real, and someone must pay to develop alternatives so that districts like Kesari are not left choosing between malaria and a persistent chemical. The revised claim is narrower and stronger: eliminate persistent pesticides everywhere they are not preventing an immediate and serious disease burden, and fund the alternatives that would let the remaining uses end.

References

Eskenazi, B., Chevrier, J., Rosas, L. G., Anderson, H. A., Bornman, M. S., Bouwman, H., Chen, A., Cohn, B. A., de Jager, C., Henshel, D. S., Leipzig, F., Leipzig, J. S., Lorenz, E. C., Snedeker, S. M., & Stapleton, D. (2009). The Pine River statement: Human health consequences of DDT use. Environmental Health Perspectives, 117(9), 1359-1367. https://doi.org/10.1289/ehp.11748

van den Berg, H. (2009). Global status of DDT and its alternatives for use in vector control to prevent disease. Environmental Health Perspectives, 117(11), 1656-1663. https://doi.org/10.1289/ehp.0900785

World Health Organization. (2011). The use of DDT in malaria vector control: WHO position statement. Global Malaria Programme.