0203 GMT - Seasonal air pollution remains a persistent challenge in Southeast Asia, but European investors aren't allowing the recurring haze in Indonesia to derail their regional commitments, says Chris Humphrey, executive director at the EU-Asean Business Council, in an interview. The recurring agricultural fires in Indonesia haven't damped European businesses' investment and growth outlook for Southeast Asia, he says. However, the region needs to step up efforts to tackle the problem, while Indonesia should work to prevent farmers and plantation owners from burning crops, he adds. Such efforts could also be supported through cooperation between Indonesia and dialogue partners such as the European Union, he says, adding that this year's haze has been exacerbated by climate-change related issues.