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      <marc:subfield code="a">Global existential risks.</marc:subfield>
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      <marc:subfield code="i">At head of title: </marc:subfield>
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      <marc:subfield code="a">[Ottawa] : </marc:subfield>
      <marc:subfield code="b">Policy Horizons Canada = Horizons de politiques Canada, </marc:subfield>
      <marc:subfield code="c">May 2023.</marc:subfield>
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      <marc:subfield code="a">Issued also in French under title: Risques existentiels mondiaux.</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (page 6).</marc:subfield>
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      <marc:subfield code="a">"Global existential risks are a class of human-made and natural phenomena that could destroy all human life or permanently limit humanity’s development. Those who worry about them have generated a lot of media attention with calls for research and immediate action. Others consider such risks too distant or improbable to deserve much attention. Certain existential risks, such as climate change and nuclear war, seem to be intensifying or becoming more probable, while others seem as remote as ever. There is also growing skepticism about the existential risks discourse. Recent controversies surrounding some of the field’s major figures and donors may reduce its influence, but it will likely remain key to the debate about risk discourse. Ultimately, this debate reduces to a single question for policy makers. How should governments use their limited attention and money when faced by a range of threats with different likelihoods and on timelines varying from right now to the distant future?"--Page [1].</marc:subfield>
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      <marc:subfield code="u">https://horizons.gc.ca/en/2023/05/16/global-existential-risks/</marc:subfield>
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