Across nearly eight decades, more than 2,000 nuclear tests were conducted at more than 60 sites around the world.

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These tests left a legacy of destruction, rendering lands uninhabitable and creating long-term health problems for people.

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Recent calls for the resumption of nuclear testing demonstrate that the terrible lessons of the past are being forgotten — or ignored.

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On the International Day Against Nuclear Tests, the world must speak with one voice to end this practice once and for all.

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The Comprehensive Nuclear-Test-Ban Treaty is the only prohibition on all nuclear testing, and an essential, verifiable security tool.

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But it is not yet in force.

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In the name of the victims of nuclear tests and future generations, I call on all countries whose ratifications are needed for the Treaty to enter into force to do so— immediately and without conditions.

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Let’s pass the test for humanity – and ban nuclear testing for good.