WHO says air pollution kills 600,000 children every year
"Polluted air is poisoning millions of children and ruining their lives"
Hunt the malaria bug - a new game for sniffer dogs
Researchers believe odour given off by malaria parasite is attracting mosquitoes that spread disease - it's this same odour dogs are likely to be smelling
South Sudan violence blocking food aid, says U.N.'s WFP
'Tens of thousands of people (are) in need' in South Sudan
One year on, Syrians in Raqqa exhume their dead for reburial
One year since Islamic State's defeat at Raqqa, the bodies are still being counted as they are pulled from mass graves and from the rubble in the city
Kindness of strangers: A day in the life of the migrant caravan in Mexico
Estimates on the size of the caravan vary from around 3,500 to more than double that
Philippines evacuates coastal areas ahead of typhoon Yutu
Waves of 3 metres possible off 6 provinces
U.S.-bound migrants enter Guatemala, others clash at border
Group follows thousands of other Central Americans fleeing poverty and violence who have taken similar journeys in recent weeks
Children dying of Ebola at unprecedented rate in Congo -health ministry
An emergency WHO committee said that the outbreak was likely to worsen significantly unless the response was stepped up
With border open, Jordanians visit Syria for first time in years
The crossing had been closed since rebels captured it in 2015, though many are making the trip for the first time since 2011, when the Syrian conflict first erupted
Mexico honors migrants at Day of the Dead as caravan treks north
"The parade... is dedicated to migrants, who in their transit to other countries have lost their lives," the Mexico City administration said