The Good It Promises, the Harm It Does is the first edited volume to critically engage with Effective Altruism (EA). It brings together writers from diverse activist and scholarly backgrounds to explore a variety of unique grassroots movements and community organizing efforts. By drawing attention to these responses and to particular cases of human and animal harms, this book represents a powerful call to attend to different voices and projects and to elevate activist traditions that EA lacks the resources to assess and threatens to squelch. The contributors reveal the weakness inherent within the ready-made, top-down solutions that EA offers in response to many global problems-and offers in their place substantial descriptions of more meaningful and just social engagement.