摘要：Introduction Rio de Janeiro has a storied record of supporting environmental action. The city twice hosted the United Nations Conference on Environment and Development: in 1992 when it was more widely known as the “Earth Summit” and in 2012, when it was called “Rio+20.” During this time period, the International Olympic Committee (IOC) amplified its rhetorical commitment to environmental sustainability, although host-city follow-though was routinely lacking. This historical backdrop raised th...
