We seldom felt ourselves to be in such a large city, however, perhaps because of the tree-lined boulevards and the low-rise buildings of the business and government districts.
Calculate carbon emissions for a road trip or flight and buy offsets to fund worldwide projects that employ those in poverty, such as tree-planting programmes that hire low-income workers, or projects that help both the poor and the environment by distributing fuel-efficient stoves, as opposed to wood-burning ones used in most homes in developing countries.