This chapter synthesises the key insights from earlier chapters in this book that examine the uses of environmental politics by Australia-based contemporary and historical far-right actors. A further summary discussion outlines international and historical comparisons with the far right in Australia, making the case for recognising contiguity and reciprocity between disparate institutional and non-institutional political actors in respect of denialist, accelerationist and resignatory climate change attitudes. These connections are argued to signify a process of mainstreaming far-right climate change responses, particularly as they relate to the political–economic pressures and opportunities driving dominant anti-environmentalist campaigns, and mediatised environments in which far-right political positions and their propagandised coverage in the media are effectively co-produced. A holistic analysis then addresses the insights set out in the previous chapters about responses to both climate change and the far right by intergovernmental institutions and grassroots political movements. This discussion reveals another dialectic at play, wherein the increasing prevalence of authoritarian and ethnonationalist reactions to undesirable ecological-environmental circumstances relates to the state-based securitising and developmental frameworks they operate within. The chapter concludes by considering the possible future trajectory of far-right movements exploiting the climate crisis, and then outlining the role of post-capitalist imaginaries in developing transformative political alternatives to the far right.