As solar power expands the work day, incomes rise in eastern Kenya
With solar lights in the market, farmers can grow by day and sell by night
Solar Impulse founder sees electric passenger plane in 10 years
In a decade, "you'll have 50 people travelling short-haul on electric planes", predicts Bertrand Piccard
Philippines HIV prevention policies leave behind men who have sex with men - rights group
HIV prevalence among men who have sex with men in The Philippines has increased tenfold over the last five years
Trump to pick foe of Obama climate agenda to run EPA -source
Choice of Scott Pruitt to head the Environmental Protection Agency has enraged green activists and cheered oil industry
Doctors as taxi drivers: Untapped immigrant talent costs U.S. billions - research
"The economy takes a hit in every case where a high-skilled immigrant is underemployed or can't find work"
U.N. seeks record $2.7 billion aid for Boko Haram-hit Sahel
In addition to violence involving militant groups, climate change is a major factor behind the growing number of vulnerable people across the region
Insurers should consider climate risk more: industry group
Losses from natural catastrophes have increased five-fold since the 1980s to around $170 billion today
Bangladeshi slum kids work over 60 hours a week to make clothes - research
More than five million children aged between 5 and 17 are engaged in some kind of employment in Bangladesh
Dead brother's vest, bracelet, coffee pot - what refugees take when they flee
What would you take if you had to leave your home at a moment's notice? Four refugees tell the stories behind their most prized possessions
Male partners responsible for deaths of most UK women killed by men - charities
"We're just not working as hard as we could to prevent women being killed"