The Canadian Refugees Welcome Movement (2015–2016) was one of the most sizeable, visible, and effective instances of collective action in recent Canadian history. It had a nationwide scope and grassroots initiation. It comprised a wide variety of participants and actively employed social media in its constitution. This article reports the results of a multimethod case study that seeks to explain how collective action frames emerged in the context of the Canadian Refugees Welcome Movement; which actors were involved in their articulation; and how they generated a following, collective action and humanitarian and political effect. The focus is on the discursive processes of construction of solidarity across difference as they unfolded in the social media environment. The Facebook event pages calling for rallies in support of Syrian refugees, it argues, served as a discursive space that helped transform the moral shock experienced by members of distinct moral communities into a process of concerting of voices and construction of solidarity and collective action frames across differences.

中文翻译：

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“大声说，说清楚……”：加拿大难民欢迎运动中的团结声援（2015-2016年）

加拿大难民欢迎运动（2015-2016年）是加拿大近期历史上规模最大，最明显，最有效的集体行动之一。它在全国范围内都有基层组织。它由各种各样的参与者组成，并在其宪法中积极运用了社交媒体。本文报告了一项多方法案例研究的结果，该案例旨在解释在加拿大难民欢迎运动的背景下集体行动框架是如何形成的；哪些演员参与了他们的表达；以及它们如何产生跟随，集体行动以及人道主义和政治影响。重点是在社交媒体环境中逐步发展的跨差异团结的话语过程。Facebook活动页面呼吁集会以支持叙利亚难民，