McEwen is the home of the Irish Picnic, a fundraiser for the local St. Patrick Church and School. It was established in 1854 and was recognised in 1988 by the Guinness Book of World Records as The World's Largest Outdoor Barbecue.
Quick Answer. Factors that cause population growth include increased food production, improved health care services, immigration and high birth rate. These factors have led to overpopulation, which has more negative effects than positive impacts.
In biology, population growth is the increase in the number of individuals in a population. Global human population growth amounts to around 75 million annually, or 1.1% per year. The global population has grown from 1 billion in 1800 to 7 billion in 2012.