India, Feb. 2 -- Aviation leaders tackled barriers to growth and the impact of geopolitical tensions on the eve of the Singapore Airshow on Monday, while reaffirming pledges to reduce emissions. Supply chain problems are hurting global airlines and will remain for some time to come, the head of the International Air Transport Association warned industry leaders and regulators. "This disruption continues to have a major impact," IATA Director General Willie Walsh said at the Changi Aviation Summit, ahead of Asia's largest air show. Planemakers Airbus and Boeing have faced supply chain problems since the COVID-19 pandemic, while engine makers like GE Aerospace and Pratt & Whitney are having to juggle competing demands from new plane assembl...