Mexico City chokes on its congestion problem

Authorities are trying to reduce pollution in the capital but confused policy-making and rising car ownership are reducing the city to poisonous gridlockEvery morning, Adriana Carlos leaves her home on the southern fringes of Mexico City at 7am for what should be a manageable journey to her office job. Instead, her commute from the southern borough of Xochimilco takes two hours and involves three separate transfers before she reaches her office on the south-west edge of the city.“You spend