Amid fires, wildfire smoke, extreme heat, and other climate-driven disasters and health hazards, California's leading experts in children's health and education have come together to call for a cost-effective, ten year $150 billion investment to ensure K-12 public schools can remain open and provide safe and healthy places for California's children to learn and grow. This coalition of more than 50 stakeholders urges state lawmakers to prioritize schools in California's climate action plan, and proposes a path to ensuring every school in the state helps to mitigate both the impacts and the causes of the climate crisis. This is the first comprehensive report on climate-driven impacts on children in CA that addresses the full scope of the problem while laying out an immediately actionable plan. [For the full report, see ED629533. This report was written in collaboration with the Stanford University's Sean N. Parker Center for Allergy and Asthma Research, Center for Innovation in Global Health, Action Lab for Planetary Health (ALPHA), UndauntedK12, and Ten Strands. The report was sponsored by the 11th Hour Project, Schmidt Family Foundation.]