Marcus Davis is a co-founder and co-executive director at Rethink Priorities, where he leads research and strategy. He's also a co-founder of Charity Entrepreneurship and Charity Science Health.

Animal suffering is a global problem that requires action on a global level. How can we think about effectiveness across geographical and cultural contexts?

Recent technological and geopolitical trends make nuclear war more likely than it has been in decades. Carl discusses these developments and assesses the options for reducing nuclear risk.

If all goes well, human history is just beginning. Humanity could survive for billions of years, reaching heights of flourishing unimaginable today. But this vast future is at risk.

GiveWell recommends charities that directly deliver interventions to beneficiaries, with advantages that are easy to measure, but some hard-to-measure interventions might be more cost-effective.

Brian Tse explores the prevention of war between the world’s great powers, which sharply increases the risk of a global catastrophe via the risk of nuclear weapon use.

This talk explores the most important questions in wild animal suffering, how to approach them, and how different answers might motivate our priorities.

Open Philanthropy Project's Claire Zabel talks about their work to mitigate Global Catastrophic Biological Risks.

In this paper, the authors discuss Iason Gabriel’s recent piece on criticisms of effective altruism.

The term “cause-neutrality” has been used for at least four concepts: cause-impartiality, cause-agnosticism, cause-general investment, and cause-divergent investments. We explore those concepts.

In this edited transcript of his talk at EA Global, Will MacAskill explores what are the major moral problems that we'll regret in the future? What are the major issues that we haven't even conceptual