The aggregate wealth of the world's billionaires is at an all-time high, and 210 new names, including 34 women, have joined the list.
The host of the 2014 World Cup and 2016 Summer Olympics faces many questions as it prepares for mega-events that are changing the way things are working in Rio de Janeiro.
The UN's global conference underscored just how much ground Rio de Janeiro itself has to cover when it comes to environmental sustainability. It also showed what a long way the city has to go to prepare for the 2014 World Cup games and the 2016 Olympics.
Rio has a lot of work to do before Rio+20, the World Cup, and the Olympics. But by the time the last event is over, not only will Rio have changed dramatically, but Brazil will be a different country.
According to Forbes Magazine, the richest person in the world is Carlos Slim Helu, with a net worth of $74 billion. He is the chairman and chief executive of telecommunications companies Telmex and América Móvil and has extensive holdings in other Mexican companies through his conglomerate, Grupo Carso SAB, and other global business interests.
Carlos Slim retained the top spot on the Forbes rich list for the second year in a row. The Mexican telecoms tycoon represents a growing trend of billionaires bubbling up from emerging markets worldwide. Over the past year, China doubled its number of billionaires, according to Forbes, and Moscow now has more billionaires than any other city. Of the 11 richest men in the world, the following five come from emerging economies in Latin America and Asia:
Carlos Slim Helu is now the richest man in the world, says the new Forbes billionaire list. He shares certain traits with his fellow top billionaires.