Colombian energy giant Ecopetrol has polluted hundreds of sites with oil, including water sources and biodiverse wetlands, ...

Colombia’s state-led oil company Ecopetrol ... A fishing union representative also told the BBC that water pollution has led to a “massacre” of fish and the vulnerable West Indian manatee ...

For more than 50 years, the Columbia Environmental Research Center has produced research about contaminants and their effects ...

Colombian energy giant Ecopetrol has polluted hundreds of sites with oil, including water sources and wetlands, the BBC World Service has found - allegations the company denies.

At the World Health Organisation's second conference on air pollution and health in Cartagena, Colombia, household air pollution has taken centre stage. Balakrishnan, one of the keynote speakers ...