We track four people on their journey.
We speak to Israeli Deputy FM Tzipi Hotovely
10 Jan 2014 12:32 GMT
Brazil is facing unwelcome attention because of water pollution in Rio de Janeiro.
Olympic sailors say the city's bay is simply too dirty for sport.
Al Jazeera's Lucia Newman reports from Rio de Janeiro.
Source: Al Jazeera
Curitiba's reputation for innovative recycling initiatives could be coming to an end.
Environment, Latin America, Brazil
Organisers scramble to build six stadiums in time for June 12 opening match in Sao Paulo, where two builders died.
Transport apps are revolutionising commutes for the middle classes, but poorer citizens still face daily gridlock.
Poverty & Development, Asia, India
Cubans get amnesty at the US border, but reaching it involves a risky journey along the Central American migrant trail.
Human Rights, Latin America, Cuba
In many ways, Michael is just like any other 11-year-old, but he has had four open heart surgeries.
Health, US & Canada
Follow a dancer through the exhaustion and jubilation of Peru's days-long Virgin of Candelaria festival.
Arts & Culture, Latin America, Peru
With sanctions lifted, Tehran is entering an already-glutted market as it plans to produce 500,000 barrels a day.
Oil, Iran, Saudi Arabia, Business & Economy, Middle East
President Obama to deliver tough message during ASEAN summit that territorial disputes must be resolved peacefully.
South China Sea, Barack Obama, China, US
We follow the journey of a plastic bottle to find out what it takes to truly recycle the product creating zero waste.
Science & Technology, US & Canada, Environment
A couple working to protect LA communities from gang violence is caught in the crossfire of the US war on gangs.
Politics, Gang violence, US
We taste an array of foods that played a crucial part in integrating Muslim and Jewish communities into British society.
Arts & Culture, United Kingdom, Food
South Koreans drink twice as much liquor as Russians, but is this national obsession with alcohol reversible?
Health, Asia, South Korea