What biogeochemical cycle is much publicized as contributing to global warming? 27-4 What is the main source of the carbon in the cellulose forming the mass of a forest? 27-5 Clinical Case: Clean Water A Matter of Life and Death Two days ago, Charity, a 48-year-old journalist from Miami, returned to the United States from a 6-week trip to several countries for a story she is writing on recovery progress after major earthquakes. When she first came home, Charity began to experience diarrhea, which became worse as the day progressed. After the second day of severe diarrhea the beginning of leg pain, Charity seeks care at a local outpatient health care facility. She reports no vomiting or fever but has 10 watery stools per day without visible blood or mucus. What immediate treatment does Charity need? Read on to find out. 773 781 783 787 789 790