This short video gives a graphic insight into world population growth across the globe from 1 AD up to 2030 AD. Each dot represents 1 million people.
This is part of a wealth of resources on 2degrees, the world's leading sustainable business community. You might also be interested in:
And finally if you are interested in smart cities you can register for the 2degrees webinar, 'How do you create a smart city?', with practical examples from Helsinki and Melbourne, or check out some of the other resources in the 2degrees 'Smart Cities' working group.