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Reducing CO 2 emissions progressively moves up on national and international political agendas. Hopes for "carbon neutrality" heavily rely on renewable energies, especially wind and solar. However, actions against climate change are not at zero cost and can exert large negative environmental and social impacts. The land footprints of wind, solar and hydropower are dozens to hundreds of times larger than other alternatives to fossil fuels, such as nuclear power. However, evidence-based calls to seriously consider nuclear power as part of the energy mix needed to get rid of fossil fuels are systematically ignored, as nuclear energy has been progressively ruled out from the energy transition debate, particularly in most advanced economies. Since first reports on the topic, habitat degradation still ranks as the largest driver of biodiversity loss (e.g. a 68% decrease in vertebrate populations since 1970), contributing between 4 and 14 times more than climate change. Climate action is a Sustainable Development Goal that must be addressed without compromising other Agenda 2030 targets, such as preserving biodiversity. Halting habitat degradation while fighting against climate change will require to seriously re-consider the inclusion of nuclear power into the energy mix for a truly sustainable development, particularly considering that the global energy demand has no signs of slowing down. Otherwise, we risk to degrade what is left of our already decimated nature in the name of climate change. [ABSTRACT FROM AUTHOR]

Achieving equitable and sustainable development that supports climate change mitigation targets and avoids biodiversity loss remains a leading, and intractable challenge in many tropical countries. Sectorial thinking – focusing on just one aspect of the problem or system – is increasingly understood to be inadequate to address linked social-ecological challenges. Holistic approaches that incorporate diverse stakeholders across scales, sectors, and knowledge systems are gaining prominence for addressing complex problems. Such 'integrated landscape approaches' have received renewed momentum and interest from the research, donor and practitioner communities, and have been subsumed in international conventions related to climate, biodiversity, and sustainable development. However, implementation efforts and tangible evaluation of progress continues to lag behind conceptual development. Failure of landscape approaches to adequately engage diverse stakeholders—in design, implementation and evaluation—is a contributing factor to their poor performance. Here we draw on consultation workshops, advances in the literature, and our collective experience to identify key constraints and opportunities to better engage stakeholders in tropical landscape decision-making processes. Specifically, we ask: (1) what are the key challenges related to effectively engaging multiple stakeholders in integrated landscape approaches and (2) what lessons can be learned from practitioners, and how can these lessons serve as opportunities to avoid duplicating future research efforts or repeating past perceptions of underperformance. We present our findings within three broad categories: (i) navigating complexity, (ii) overcoming siloed thinking, and (iii) incentivizing behavioral change; thus providing a useful starting point for overcoming inherent challenges associated with engaging stakeholders in landscape approaches. • Engagement benefits from boundary support and independent facilitation to integrate expert and community experiences. • Co-produced theories of change enhance shared understanding of desired outcomes and measurable process indicators. • Incentive structures generate variable responses and therefore must be carefully contextualized. • Participatory modeling makes assumptions explicit, enabling transparent decision-making. • Forecasting exercises enhance knowledge, capacity and empathy by exposing actors to diverse perspectives. • Locally relevant people-based strategies are crucial to secure meaningful and long-term engagement. [ABSTRACT FROM AUTHOR]