Environmental systems do not respect the boundaries we draw between them. Our solutions should not either. How to read this post. I have marked claims so you can see where each one comes from. [EVIDENCE] means the point rests on published, peer-reviewed research, cited at the end. [MY VIEW] means the point is my own analysis, offered as informed opinion rather than settled fact. Climate change is not a distant threat. It is reshaping the world we live in now. Bangladesh, my own country, sits near the front of that change. Riverbank erosion alone displaces tens of thousands of people here every year. EVIDENCE [1] Floods routinely cover large parts of the country during the monsoon. The trend is worsening as extreme weather intensifies. EVIDENCE [2] These pressures do not arrive one at a time. A single heat wave raises energy demand for cooling, strains water supplies, changes how waste breaks down, and degrades the air people breathe, all at once. This is the core probl...