Tokyo, June 28 (TIWN) Leaders from the Group of 20 major economies weighed the risk of a slowing global economy on Friday amid growing trade and geopolitical tensions as a two-day summit began in Osaka under Japan's presidency.

The G20 is an international leaders' forum comprising 19 countries and the European Union.  Collectively, the grouping represents more than 80 percent of the world's economic output and two-thirds of its people. Its primary aim is to promote international financial stability.