UN climate talks open with hopes for deal, warning time short
Cooperation between China and US, and decision by EU to cut emissions give talks new sense of momentum
Disaster hazard maps going unused in Sri Lanka, creators say
Existing maps showing safe – and risky – areas could have saved lives in October landslide, officials say
Tamil Nadu sets an example in managing water
From rebuilding water storage to improving water harvesting, the water-short state is making good choices
Colombian rebels free army general and two other hostages
President Santos halted peace talks in Havana two weeks ago after FARC rebels seized five hostages
Climate change adaptation comes of age in UN talks
As climate negotiations start in Peru, the world faces "mind-boggling" costs to adapt to changes, expert says
Drought-hit Sao Paulo may 'get water from mud'
Deforestation, poor planning and a lack of investment in reservoirs have left São Paulo on the brink of disaster
Spanish pledge raises climate fund close to $10 billion goal
Pledge comes ahead of UN meeting in Peru next week to work on a global climate deal
New initiative aims to reduce food waste
About 30 percent of the world's food is wasted annually, but a new FAO effort aims to promote savings
Pakistan to fight food insecurity with high-tech crop data
New geospatial system will better calculate crop losses to extreme weather and support efforts to tackle hunger