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Without a shift to renewable energy sources, climate change will have adverse effects on many terrestrial and aquatic species. On the other hand, replacing fossil fuels with renewable energy will have different effects on wildlife, some negative. To protect biota, while navigating the complexities surrounding the transition to renewable energy, will require sharing knowledge between energy experts and wildlife experts, as well as policy makers and resource managers. This special issue is intended to advance the conversation. Interactions between renewable energy facilities and fauna are complex. Each source of renewable energy has its own conservation concerns, and each presents its own set of opportunities for mitigation; Other concerns and mitigations are shared. In this overview, we review climate risks to biota, clarify the complementarities among renewables for the conservation community, and summarize research on energy effects on biota for the energy community. The papers invited for this special issue address fossil (coal, oil, natural gas) and renewable energy (terrestrial biomass energy, hydropower, marine-hydrokinetic energy, wind energy, solar energy) and affected fauna. We hope that the results of these studies, and others like them, set us on a path toward low-carbon energy systems that provide society with energy while protecting future biodiversity. [Display omitted] • Without a shift to renewable energy, climate change will have adverse effects on many terrestrial and aquatic species. • On the other hand, renewable energy sources have their own conservation concerns. • To set the stage for the special issue, we review growth projections and describe complementarities among renewables. • We summarize the conservation concerns and mitigations for each renewable energy source presented in special issue papers. • This special issue seeks to illuminate paths that provide society with energy while protecting future biodiversity. [ABSTRACT FROM AUTHOR]

Abstract: For all but the last 250 years, mankind was almost entirely dependent on renewable energy, mainly from biomass and wind. Then the era of fossil fuels downed and we shifted away from renewables. But excessive use of fossil fuel has now precipitated existence-threatening climate change and ocean acidification. So the world is once again reverting to renewables in a big way. It is as if the human quest for energy has come full circle. But will this ‘home coming’ bail us out of the global environmental crisis? This paper says it will not as long as we do not drastically reduce the largely conspicuous and wasteful consumption. [Copyright &y& Elsevier]