By Valerie Volcovici SHARM EL-SHEIKH, Egypt (Reuters) – The United States is listening to the concerns of European counterparts about the trade tensions triggered by the Biden administration’s clean vehicle subsidies tucked into the Inflation Reduction Act, the official overseeing the bill’s implementation said on Wednesday. John Podesta, appointed by President Joe Biden to oversee the rollout of the climate-related measures in the sprawling spending bill, told reporters at the COP27 climate summit that the United States is discussing and understands the concerns raised by European officials a…