5 facts: The rising trade in ethanol
U.S. policy to boost the use of fuel from renewable sources is generating additional greenhouse gas emissions due to rising trade in ethanol between the United States and Brazil, rather than lowering emissions as intended, research by Thomson Reuters Foundation shows. Find out more about the ethanol trade in this picture factbox.
The thousand widows of Maiduguri
Thousands of women have lost their husbands to the conflict between Boko Haram and the Nigerian army
Communicating climate change
How can climate change be made easier to understand, to help people act on it?