Cow poo offers mixed energy results for rural Zimbabweans
Biogas – the process of producing energy by fermenting waste – is gaining in popularity around the world
INTERVIEW-World must aid famine-threatened Nigeria to avoid 'mass exodus'
"The world could see a mass exodus from a country of 180 million people if support is not given, and fast ... if people facing famine fall into famine"
INTERVIEW-Brazil prosecutors demand answers on names missing from slavery "dirty list"
The names of 17 employers profiting from human trafficking has disappeared from the country's list
FEATURE-Gold rush fever among poor Zimbabweans leaves trail of destruction
"This (illegal mining) is our only source of livelihood"
U.S. will lag as global climate action marches on, says former agency head
"I just don't see why we would cede the clean energy space to other economies"
Lebanon urged to do more to trace thousands missing from civil war
"I lost a piece of me"
Water out of thin air? It can be done, say scientists
The technology could be "really great for remote areas where there's really limited infrastructure"
Post-Brexit vote plan to demolish 1,300 London flats is a 2 bln pound "gamble" - residents
Residents from Haringey borough said the redevelopment represents the largest single transfer of local government land to the private sector in Britain
Online ads target Britain's homeless youths with offer of shelter for sex - charity
"Young people aren't doing this because they want to, they're doing it because they're desperate for somewhere to stay"
Celebrated African women hope to inspire girls to narrow gender gap
"I hope our successes will encourage many girls and young women to aspire to work in vital sectors like science, health, engineering and technology"