Exclusive interview with Luc Gnacadja, head of UN desertification convention

Some gains, plus commitments to future sustainable development talks

At Rio summit, African delegates are skeptical of the benefits

Paving the path to “the future we want”

Interview with Kumi Naidoo, executive director of Greenpeace International

Interview with UN-Habitat’s Joan Clos

Governments set course towards improving poor urban areas

With new outlet, Korogocho residents push for reforms

Action needed to counter an “ecological catastrophe”

Turbines generate hope for clean energy

Tapping geothermal power in Kenya’s Rift Valley