This series provides updated research material for school assignments. Both titles present a holistic overview of their topics. Brink of Extinction explains the human causes of our climate crisis, fossil fuels, overpopulation, and invasive species. Possible solutions are described, such as the Green New Deal, youth activism, and international cooperation. Surviving Social Media examines the benefits of social media as a tool for supporting causes and connecting people. The text also details social media's negative impact on society, which can lead to misinformation, shaming, cyberbullying, trolling, and hate groups. Each title includes a glossary, critical thinking questions, further reading, source notes, a bibliography, and an index. VERDICT An informative addition to nonfiction collections, with very useful information for research assignments.--Cathy DeCampli, Haddonfield Public Library, NJ "School Library Journal"