"African Americans make up about 13 percent of the U.S. population but comprise 32 percent of patients treated for kidney failure, giving them a kidney failure rate that is 4.2 times greater than that of white Americans."
"It's coming home to roost over the next 50 years or so. It's not just climate change it's sheer space, places to grow food for this enormous horde. Either we limit our population growth or the natural world will do it for us, and the natural world is doing it for us right now."
"Low levels of vitamin D in the population as a whole suggest that most people need to take a vitamin D supplement. This may be especially true for seniors, as the ability to synthesize vitamin D in the skin declines with age."
"The biggest opportunity in 2013 is in Africa. It has seven out of the ten fastest-growing economies in the world. In Nigeria alone there are 100 million people with mobile phones. In total, 300 million Africans - five times the population of Britain - are in the middle class."
"Another cause of change, one less noticeable but fundamental, is the modern growth of population closely connected with scientific and medical discoveries. It is interesting that the United Nations has set up a special Commission to study this question."
"With the world's human population now at seven billion and growing, and the demand for technology and modern conveniences increasing, we can't control all our negative impacts. But we have to find better ways to live within the limits nature and its cycles impose."
"I won't compare ants and people, but ants give us a useful model of how single members of a community can become so organized that they end up resembling, in effect, one big collective brain. Our own exploding population and communication technology are leading us that way."
"Yet food is something that is taken for granted by most world leaders despite the fact that more than half of the population of the world is hungry."
"Of course, a positive growth rate might be taken as evidence that a population is below its optimum."
"Black people dominate sports in the United States. 20% of the population and 90% of the final four."