Patrik Johansson CBL Review
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Knowledge Check
These four scenarios were created to see how much you’ve learned in this module. The answers are for self-check only. Detailed explanations with primary sources are provided regardless of your response. Take your time. Priya Priya is a 34-year-old woman who presents with a 12-day history of progressively worsening fever—initially low-grade, now 39.8°C—accompanied by headache, […]
Case Study: Daniel
Each module in this topic series covers a distinct pathway. However, in clinical practice, these exposures co-occur in the same patients. Planetary health reasoning means seeing the whole picture rather than addressing each symptom in isolation. Tap the arrow to view the case.Daniel is a 38-year-old man who presents to the emergency department. This is […]
Equity and Clinical Integration
Who carries the greatest burden? The environmental justice framework applies directly here. Each of the groups below faces a mechanistically distinct vulnerability to water or food-related climate impacts. Before expanding the cards: Name two populations you expect to appear here and briefly explain why each faces a specifically water or food-related climate vulnerability. Then explore […]
Food, Nutrition, and Climate Change
Introduction? Pathway 1: Crop-yield reduction Heat, drought, and flooding reduce how much food the world can produce, and at a scale that is easy to underestimate. Yield sensitivity evidence For every 1°C increase in average growing-season temperature, global yields of wheat, rice, maize, and soybean fall (approximately): 6.0% for wheat. 3.2% for rice. 7.4% for […]
Case Study: Mateo
Tap the arrow to view the case.Mateo is a 4-year-old boy brought to a rural federally qualified health center (FQHC) in eastern Washington State with a 3-day history of profuse, watery diarrhea without blood. He has colicky abdominal cramping and mild vomiting. He has no fever. On examination, he is mildly dehydrated with dry mucous […]
Clinical Presentations
Filter by mechanism, then select any disease to see the full clinical picture. Review at least one disease before continuing. All Diseases Excess water Water scarcity Warming waters Cholera Pathogen: Vibrio cholerae. Climate mechanism: Flooding. Learn more about cholera. Typhoid fever Pathogen: Salmonella Typhi. Climate mechanism: Flooding. Learn more about typhoid fever. Hepatitis A Pathogen: […]
Climate Drivers of Water-Related Disease
Climate change disrupts water systems in two opposite directions, and a third mechanism operates across both. Select each pathway below to explore the mechanisms and associated diseases. Clinical pearl Rural Washington state has a high proportion of households reliant on private wells, making flooding-driven well contamination a clinically important local risk. Warming freshwater temperatures are […]
Introduction to Water- and Food-related Impacts
I created this introduction. Please feel free to change. The impacts of climate change include extreme weather events, rising sea levels, warming temperatures, and changes in precipitation. These impacts affect the food we eat, the water we drink, the air we breathe, and the weather we experience. The severity of the health risks depends on […]