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Caleb Scharf

Caleb Scharf

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Caleb Scharf is Director of Astrobiology at Columbia University. His next book, The Copernicus Complex, will be published in September 2014.

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  3. haass130_MANDY CHENGAFP via Getty Images_taiwan MANDY CHENGAFP via Getty Images

    The Taiwan Triangle

    Richard Haass

    The goal of US policy toward the island should be to reduce uncertainty about America’s intentions and its ability to make good on them, while underscoring to Chinese leaders the economic and military costs of aggression. As much as China’s leaders want Taiwan, they also want to maintain power and the Communist Party’s political monopoly.

     explains why the island’s status is a situation that must be managed, not a problem that can be solved.
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  4. hedegaard10_Mark KerrisonIn Pictures via Getty Images_cop26 Mark KerrisonIn Pictures via Getty Images

    The EU Must Step Up in Glasgow

    Connie Hedegaard

    As world leaders prepare to gather for COP26 next month, expectations for progress are low, even as the need to address climate change becomes more urgent. The European Union was critical in building the coalition needed to conclude the Paris climate agreement in 2015, and success in Glasgow may again depend on EU leadership.

     says next month’s UN climate-change conference will fail unless the European Union comes prepared to lead.
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  9. op_vanwaas1_Paula BronsteinGetty Images_rohingya muslims Paula BronsteinGetty Images
    Subscriber Exclusive

    The Statelessness Pandemic

    Laura van Waas & Natalie Brinham

    At least 15 million people today are stateless, and millions more are threatened with national exclusion. The issue of statelessness thus demands urgent attention, as do works of history that shed light on the problem.

     review two works of history tracing the evolution of the problem and the role of modern states in creating it.

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