China's Belt and Road Initiative looks to become smaller and greener after a decade of big projects that boosted trade but left big debts and raised environmental concerns. The shift comes as leaders from across the developing world descend on Beijing this week for a government-organized forum on what is known as BRI for short. The initiative has built power plants, roads, railroads and ports around the world and deepened China’s relations with Africa, Asia, Latin America and the Mideast.