Weberence.com

The United Nations creates a few days ago an online service with all the statistical databases of the organisation. I think that this is a valuable tool for every research, project, study etc.
Over the past 60 years UN has collected valuable information for every country and now every one of us has the chance, via [...]

According to recent studies until 2050 80% of the worlds population would live near the city. The world population is said to increase by 3 billion people, something that will make the supply of food difficult. This will mean that we will need vast areas of land to grow more food.
A solution to this could [...]