Visualized: The World's... www.visualcapitalist.com

Chart: World Population... www.statista.com

7 Billion and Counting:... www.newsecuritybeat.org

OC] Earth's population... www.reddit.com

Projections of population... en.wikipedia.org

World Population Facts -... populationmatters.org

Challenge: The Growing... www.tellusthinktank.com

World population could peak... studyfinds.org

8 billion and counting:... nouvelles.umontreal.ca

World Population Clock: 8.2... www.worldometers.info

Our astronomer's analysis... www.oshonews.com

Earth's Population Hits 8... gfmag.com

Human population has... www.earth.com

How declining population... cepr.org

Sustainable Population:... populationmatters.org

How many humans can Earth... www.abc.net.au

World population reaches... news.sky.com

Earth's population could... www.earth.com

How the current world... www.dailymail.co.uk

Human Population Through... m.youtube.com