Communities worldwide are facing increasingly severe storms, extended periods of extreme heat, more devastating wildfires, and catastrophic sea level rise; those with the fewest resources are disproportionately impacted by these climate disasters. To equip K-12 students to understand and begin to address these environmental and social justice issues, research suggests that educators focus their instruction on solutions and empower students to take action on local challenges tied to global climate change. In this chapter, we present strategies for preparing both preservice and practicing K-12 teachers to deliver solutions-focused, justice-oriented climate change education grounded in three useful frameworks: the United Nations Sustainable Development Goals, the Global Competence Framework, and the Next Generation Science Standards. We describe activities from an elementary science methods course that engage preservice teachers in integrating engineering, environmental education, and climate change. Additionally, we highlight exemplary projects from a professional development program designed for practicing K-12 teachers to support them in developing and implementing solutions-focused projects related to climate change with their students. We conclude with a description of a transdisciplinary Climate Solutions Mapping activity, as an example of an activity that offers a collaborative approach to engaging educators across disciplines and grade levels to address climate challenges.