One of the most important reasons so many people from all over the world come to live in the United States is the dream of a better job.

While over a third of the world's population suffers from water stress, the most important consequences of overusing groundwater will be in agriculture, where most groundwater is used.

Nicky still feels that her husband "was only ever a wonderful father". "The most important people in his life were me and the children, " she says.