This chapter starts from the context of an increased attention in European civil society and institutions, since the 1970s, to global warming and climate change and the awareness of the responsibility invested with humans. While resistances are also becoming louder, it focuses on how up to the 2020s, movements for climate justice have shown a new wave of mobilizations largely based on the moral urge to act. In 2018-2019, Fridays for Future has globally emerged as a youth movement through school strikes, and Extinction Rebellion has disrupted the ordinary narrative on climate change through mass civil disobedience actions complemented by eco-spiritual-inspired care practices. Meanwhile, churches and alternative spiritualities are also increasingly claiming a moral duty to preserve ecosystems and "Creation" or "sacred Nature". Important Christian leaders have engaged publicly with the topic. The authors offer an overview of the studies conducted internationally on the link between religion and environmentalism and argue that while environmental activists tend to have no religious affiliation, they can often be "spiritually committed". On the basis of the case study of extinction rebellion in the United Kingdom, they analyze the continuities with various religious worldviews while they also identify the innovations notions such as sacrifice and care bring along.