Oh, Please! Get the Facts, Sir David
"I've never seen a problem that wouldn't be easier to solve with fewer people, or harder, and ultimately impossible, with more." Sir David Attenborough in a statement issued by the Optimum Population Trust.
According to a story by the BBC, Sir David "has become a patron of" the Optimum Population Trust, "a group seeking to cut the growth in human population." According to the article, available in full at http://news.bbc.co.uk/2/hi/uk_news/7996230.stm, "[t]he Trust, which was founded in 1991, campaigns for the UK population to decrease voluntarily by not less than 0.25% a year. It has launched a 'Stop at Two' online pledge to encourage couples to limit their family's size."
Perhaps someone should tell Sir David that the CIA estimates the total fertility rate of the UK for 2009 to be 1.66, well below the "ideal" 2 which the "Trust" advocates. So, in fact, the UK would have to INCREASE its fertility to match that goal. See https://www.cia.gov/library/publications/the-world-factbook/rankorder/2127rank.html.