People have evolved ways of earning livelihoods and supplying their needs for food, water, shelter and other goods and services that are adapted to benefit from the climates in which they live. But the climate is ever variable and changeable, and deviations that are too far from the norm can be disruptive, even hazardous.
Now the climate is changing due to human actions. Despite efforts to abate the human causes, it will continue to change at least for decades, albeit at a slower and, we hope, less dangerous pace (IPCC, 2001a). Who is vulnerable to the changes and their impacts? For whom does the bell toll? We ask, against the oft quoted advice of the 17th century poet John Donne, because understanding who is vulnerable, and why, can help us to prevent our neighbors’ home from washing into the sea, their family from suffering hunger, a child from being exposed to disease, the natural world around us from being impoverished. All of us are vulnerable to climate change, though to varying degrees, directly and through our connections to each other.
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