By collecting and categorizing our activity on Twitter, the Twitter Corner is intended to provide updates and relevant information on CBRN weapons.

The widget below shows our most recent tweets. To read only tweets related the chemical, biological, radiological, or nuclear weapons, click on the Twitter Corner menu and select the desired page.

27 years ago today, the #ChemicalWeapons Convention opened for signature in Paris. By its third day, the number of signatory parties totalled 130 States—an unprecedented show of support for an international arms control treaty. #TodayInHistory

As we celebrate the start of a new year, a look at the chemistry behind the noises of fireworks, thanks to @compoundchem. Happy New Year!

Little christmas present here from @OPCW for all chem nomenclature nerds: The consolidated changes to Schedule 1 of the Convention with new nerve agents as adoped by #CSP24. Entry into force: 7 June 2020.

States and non-state actors are using chemical weapons for a variety of purposes like counterinsurgency, assassination, coercion, terror, collective punishment, and signaling:

After almost 23 yrs since entry into force, the #CWC is close to abolishing all declared #chemicalweapons stockpiles, but continues to investigate use of CW in Syria and elsewhere. @GreenCrossInt @IFSHHamburg @rightlivelihood @ArmsControlNow @OPCW

Arms Control Assoc on Twitter

“The treaty to prohibit #chemicalweapons is nearing completion of some of its core goals, but a range of political and compliance challenges thr...

Curious about the legal and political aspects of the Chemical Weapons Convention?

Our report have them covered. 👇

Report of 5th #UNSGM Designated Laboratories Workshop at @SpiezLab is online now. I was very honoured to support this in a small way. Exciting work ahead as we move from conceptualisation to operationalisation of a trusted designated lab network >>>

Our new publication on compliance management under the Chemical Weapons Convention #CWC is now online!

Click below to read.

"Exchanging ideas & sharing experiences in chemical & biological security provides opportunity to nurture innovation in disarmament". @OPCW Statement to #1972BWC MSP delivered by @SzBochenski Thank you @BWCISU for inviting us.

Learn more about how the @OPCW Scientific Advisory Board bridges the gap between science & diplomacy #ScienceforDiplomats #1972BWC

With #CSP24 @OPCW behind us you might be interested what was agreed and who said what. You find the open documents here:

And the decisons on listing new nerve agents in Schedule 1 are here:
and here:


Twenty-Fourth Session of the Conference of States Parties


A post-holiday #PandoraReport 11.29 - USAMRIID partially resumes select agent research, @CSIS report on ending the cycle of complacency in US global health security, @OPCW updates and two adopted decisions to amend the Annex #novichok, and much more!

Pandora Report: 11.29.2019

During this holiday time, we’d like to take a moment to thank our readers – we are truly grateful for your support and continued engagement ov...

That's a wrap, #OPCW #CSP24 adopted their report after an afternoon of language negotiations. We leave with updated Schedules (#novichok is now on the control list), a programme and budget for next year, and a nice conference report that will make some great weekend reading (!!)

@IUjvary @TheNonproReview The 5th element contained putative structures of novichok agents different from those published by Mirzayanov. For more info, see “Controlling Novichoks after Salisbury: revising the Chemical Weapons Convention schedules,” by @s_costanzi and @gregkoblentz

Controlling Novichoks after Salisbury: revising the Chemical Weapons Convention schedules

(2019). Controlling Novichoks after Salisbury: revising the Chemical Weapons Convention schedules. The Nonproliferation Review. Ahead of Print.

Very useful thread explaining a complicated issue but one that shows how arms control treaties can adapt to new realities. For more ideas on how to protect and evolve the CW system of restraint see our brief: @csisponi

Rigid Structures, Evolving Threat: Preventing the Proliferation and Use of Chemical Weapons

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