Research needed into green spaces and urban growth

Last year more than half of the world’s urban population, 3.17 billion out of 6.45 billion people, live in and around cities, with trends indicating that this could extend out to 5 billion people out of a total world population of 8.1 billion people by 2030. Approximately 75% of the North American and European populations and approximately 90% of the Australasian populations live in urban and surrounding peri-urban areas.
In addition approximately 44% of the world’s population, that constituent many of the Third World countries are currently living under similar circumstances. The impact that urban growth in our cities and surrounding areas and its effect on our natural green sapces will have social, economic, environmental and health impacts and worthy of research.