We track four people on their journey.
Why Iraqi refugees abandon Europe and return home
Everton Fox | 22 Jun 2013 13:12 GMT
Cougar Creek running through Canmore, Alberta, Canada. Flooding forced the western Canadian city of Calgary to order the evacuation of the entire down-town area on Friday.
Vehicles surrounded by flood-waters are seen in the neighbourhood of Sunnyside in Calgary, Alberta The heaviest floods in decades shut down the Canadian oil capital.
Sunnyside residents survey the flooding on Memorial Drive from the rising waters of Bow River in Calgary. Heavy rain closed roads and brought down bridges elsewhere in the province of Alberta.
Around 1,300 troops were deployed to help with rescues and the mandatory evacuations that forced 100,000 people from their homes in Calgary and thousands more in the small towns surrounding the city.
A city police car is partially submerged in flood-waters from the Bow River in Calgary.
Boat or bike? Not exactly cycling weather. The rain has eased but the flooding will remain for many days since the mighty Bow river is yet to reach its peak.
A man long-boards through a flooded downtown street. There were no reports of deaths or injuries, even as people retreated rapidly from flooded areas by road, boat or helicopter.
Flooded houses in the Vallee des Gaves near Tarbes one day after unseasonal storms caused havoc across huge swaths of the country.
Villelongue by the flooded Lanne river. Dozens of roads and bridges have been destroyed and washed away
The Gave de Pau river flooded the southwestern French town of Pierrefitte-Nestalas.
Floods between Saint-Beat and Bagneres de Luchon near Lourdes, southwestern France. Over 200 people were evacuated from their homes.
Wreckage lines the streats of Saint-Beat, four days after the village was submerged by flash floods. The flash floods in southwestern France claimed two elderly victims.
A mud-covered street in Fos. The inundated grotto at Lourdes remained closed after the town was hit by severe flooding.
The mud covered streets of Saint-Beat after the village was submerged by flash floods.
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
We travel to Chile to meet a group of young scientists determined to develop smart plant-based food to save the planet.
Science & Technology, Chile, Food
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
South Koreans drink twice as much liquor as Russians, but is this national obsession with alcohol reversible?
Health, Asia, South Korea