Rio Olympics 2016: Spectacular opening ceremony kickstarts sport's biggest carnival
A glitzy and colourful opening ceremony on Friday night officially threw the Olympic Games open
If the region were to become a source of CO2 rather than a "sink", tackling the climate crisis will be that much harder.
Brazil's health regulator said the adenovirus on which the vaccine is based has the capacity to replicate, which could cause sickness or death
President Jair Bolsonaro, under investigation over his administration's handling of the crisis, has attacked mayors and governors who have enforced restrictions