Mexican tycoon Carlos Slim has topped Forbes magazine's list of the world's richest billionaires for a fourth year. The magazine estimates that Mr Slim, whose business interests range from telecommunications to construction, is worth 73bn dollars.
Billionaire computer magnate Bill Gates is to fund a €8m research project into whether cereal crops can be genetically engineered with nitrogen-fixing bacteria.
Mexican tycoon Carlos Slim, who on Wednesday topped the Forbes rich list for a third consecutive year with a fortune of 69 billion dollars, invests widely as he seeks to expand his massive telecoms empire.
Last year at the World Economic Forum, Bill and Melinda Gates called for the next ten years to be the decade of vaccines. This week as talks reconvene in Davos, Switzerland, Gates in partnership with the United Kingdom, has donated an additional $120 million dollars to fight polio in particular. This news comes in light of the Global Health Fund fraud accusations that Gates has $150 million invested in.