India, Oct. 10 -- There is an image I have been thinking about lately. It shows climate change and human health as two concentric circles. Around the Earth are people at different stages of life - pregnancy, childhood, adolescence, adulthood and later life. Around them are the hazards we have come to associate with a changing climate: rising temperatures, air pollution, floods, droughts, storms, wildfires, sea-level rise and salinisation.At first glance, it looks like another climate-health framework. But the longer I look at it, the more human it becomes.Because climate change does not happen to the planet alone. It happens to people across the entire course of their lives. And one of its most important impacts is also one of the least v...