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Already on the margins of an agrarian society, the marine fisherfolk of the South Indian state of Kerala are faced with a severe environmental problem: overfishing. The actions of trawlers and industrial fishing ships, it seems, have caused the resources on which they depend to dwindle rapidly. Yet what may appear to be a clear-cut case of cause, effect and responsibility turns out to be a complex issue. Local perceptions of the environment are deeply enmeshed with notions of morality, the self and people's understanding of their place in society. Overfishing is one of several...

Why is the sky blue?

Parents don't know what to say when their children ask.

Why the Sky Is Blue answers this ancient and surprisingly complex question in a more entertaining and accessible way than ever before. Gotz Hoeppe takes the reader on a historical and scientific journey to show the various ways people in different times and places have explained why the sky looks blue. The richly illustrated story begins with ancient myths and philosophy and ends with the cutting-edge science of optics, statistical physics, and ozone depletion. Most importantly,...