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This chapter explains the third strategic dimension of lawfare: externalities. As a form of strategic legal action, hegemonic environmental lawfare aims to create projective externalities, referring to the consequences that seek to be borne by environmental movements beyond the actual legal cases. The chapter is divided into two subheadings: (a) Leadership Decapitation, which discusses the outcomes of hegemonic environmental lawfare targeting those who are regarded as the central figures or leaders of environmental struggles, and (b) Creating Externalities, which elaborates on the impacts of lawfare beyond lawsuits concerning environmental movements in the countries.
This review highlights 10 recent advances in climate change research with high policy relevance, spanning diverse topics: (1) the global temperature jump of 2023–2024; (2) sea surface warming and marine heatwaves; (3) land carbon sinks; (4) interactions between climate change and biodiversity loss; (5) accelerated groundwater decline; (6) global dengue incidence; (7) income and labour productivity loss; (8) strategic considerations for scaling carbon dioxide removal (CDR); (9) integrity of carbon credit markets; and (10) policy mixes for climate change mitigation.
Technical Summary
Interdisciplinary understanding is vital for delivering sound climate policy advice. However, navigating the ever-growing and increasingly diverse scholarly literature on climate change is challenging for any individual researcher. This annual synthesis highlights and explains recent advances across a variety of fields of climate change research. This year, the 10 insights focus on: (1) the record-warmth of 2023/2024 and the elevated Earth energy imbalance; (2) acceleration of ocean warming and intensifying marine heatwaves; (3) northern land carbon sinks under strain; (4) reinforcing feedback between biodiversity loss and climate change; (5) accelerated depletion of groundwater; (6) global dengue incidence; (7) global income losses and labour productivity declines; (8) strategic scaling of CDR; (9) integrity challenges in carbon credit markets and emerging responses; and (10) effective policy mixes for emissions reductions. The insights have been written to be accessible to researchers from different fields, serving as entry-points to specific topics, as well as providing an overview of the evolving landscape of climate change research. In the final section, the insights are used to develop overarching policy-relevant messages. This paper provides the basis for a science-policy report that was shared with all Party delegations ahead of COP30 in Belém, Brazil.
Social Media Summary
Highlights of climate change research in 2024–2025: 10insightsclimate.science
This chapter traces the historical junctures that have shaped the political-economic trajectories in those countries. It explains the structural contexts through which environmental movements have emerged as responses to political and economic transformation. The chapter demonstrates how the political-economic structure of the country where they operate has shaped the diverse characteristics of environmental movements in terms of their organisational structures, strategies, and modalities.
Environmental defenders have been essential in protecting the environment and developing environmental law and governance. However, due to their struggles, they have been targeted by actors whose interests in capital accumulation and economic growth are affected. Besides being attacked through direct forms of violence, such as killings, physical assaults, and threats, environmental defenders are also retaliated through legal means. Hence, this chapter sets a background on an increasingly common phenomenon in Southeast Asia where law and legal institutions are mobilised by politico-business elites to intimidate environmental defenders.