
1) The respected broadcaster and naturalist, Sir David Attenborough, told the BBC recently that population growth was "out of control".
By this, he means human. The reverse is true for animals. Other experts predict that the human population will peak in 40 years. How can the Earth support so many of our species? Surely, balance is required. I hate to think how that will be achieved.

A tape they'd recorded as teenagers turned up at a car-boot sale containing their letter. A television program contacted them. Once reunited, Sir Paul wrote: "Hi Linda and Barbara, thanks very much for you lovely tape. It finally got through, better late than never. Great to hear that you found each other after all these years. Keep enjoying the music, love Paul." See more here. http://www.bbc.co.uk/news/uk-england-essex-24318839
This is one of those heart-warming stories. Friends reunited, and a contact from the past.

The study, published in the British Journal of Sports Medicine, suggested cavities, tooth erosion and gum disease were common.
Researchers said athletes, as a group, had worse dental health than other people of a similar age. Eating large amounts of carbohydrates regularly, including sugary energy drinks, was damaging teeth. Tooth pain and the resulting impact on diet and sleep may also damage performance. Many sports medics have anecdotes about athletes missing medals at major competitions as a result of oral health problems. Inflammation elsewhere in the body may also affect recovery time and susceptibility to injury.
Oral health is already a suspect in other seemingly unrelated conditions such as heart disease. People who do not brush twice a day are at higher risk of a heart attack and inflammation is common to both.
This is interesting. In my own life, my teeth suffered after producing three babies in the space of four and a half years. Apparently, my body withdrew calcium form my teeth to fund the babies' formation. Probably my bones too, because I developed osteoporosis. In the 1960s, no supplements were given to mothers.
Apart from their diet, the same theory could apply to athletes. Their body might divert calcium from one place to another. I see the effect of training on a female athlete's body. Our athletes give up a lot in their pursuit of the highest physical performance a human can achieve.