The Efficacy of Environmentalist Civil Society Organizations in Shifting Government Priorities: A Case Study of Extinction Rebellion UK

The urgency of the climate crisis has galvanized environmental movements around the world, with Extinction Rebellion (XR) playing a key role in UK en-vironmental policy. XR challenges the dominant political and economic para-digm that prioritizes growth over sustainability, with disruptive proposals in-cluding government recognition of the crisis, net-zero commitments, and citi-zen-led ecological governance. This paper explores how environmental civil society organizations (CSOs) can influence a public policy agenda dominated by economic development. Applying frameworks such as IAD, ACF, social move-ment theory, and game theory, this paper analyses XR's strategy and its impact on UK climate policy.