Complex sentence: He has given addresses at the World Economic Forum gatherings in Davos, Singapore and South Korea, and in 2007 shared a stage with former US President Bill Clinton in New York, where he launched a biofuels initiative in the Caribbean.
Split into simpler sentences: He has given addresses at the World Economic Forum (WEF) gatherings in Davos, Singapore and South Korea. In 2007, he shared the stage with former US President Bill Clinton in New York, where he launched a biofuels initiative in the Caribbean.