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Chemical Weapons

Countries convene to update chemical weapons prohibitions

Top issues include clarifying use of riot-control agents, monitoring science and technology advances

by Jyllian Kemsley
November 16, 2018 | APPEARED IN VOLUME 96, ISSUE 46

 

Chemical weapons attacks over the past few years—against civilians and combatants in Iraq and Syria and in assassinations in Malaysia and the U.K.—have increased attention on the use of chemicals in conflicts. They’ve also brought new urgency to international Chemical Weapons Convention meetings that start on Nov. 19 in the Netherlands.

The Chemical Weapons Convention is an arms-control treaty that prohibits the development, production, stockpiling, and use of chemical weapons. It went into force in 1997 and is overseen by the Organisation for the Prohibition of Chemical Weapons (OPCW). Much of OPCW’s work during its first two decades has focused on the destruction of chemical weapons stockpiles.

Now, OPCW must decide “how best to evolve to prevent the reemergence of chemical weapons in a period of rapid scientific change and unstable international security,” say Michael Crowley, Lijun Shang, and Malcolm Dando of the University of Bradford (Science 2018, DOI: 10.1126/science.aav5129).

Among the key issues facing OPCW going forward are the development and use of riot-control agents, such as tear gas, and delivery systems for such agents, Crowley, Shang, and Dando say. Misuse of riot-control agents in facilities where individuals cannot disperse—such as in hospitals, prisons, and homes­—­can cause serious injury or death. The nature of law-enforcement activities allowed under the treaty must be clarified, Crowley and colleagues say. They also advocate for strengthening OPCW’s Technical Secretariat to better monitor science and technology advances and forecast how those advances might affect chemical weapons development and use.

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