PLEASE NOTE: EDIT CONTAINS CONVERTED 4:3 MATERIAL<br/> Parts of Indonesia are shrouded in smog.<br/> Visibility in Palembang in South Sumatra province was down to 200 metres because of it.<br/> This is the cause.<br/> Farmers and plantation owners elsewhere on Sumatra have been illegally clearing forestry for years.<br/> Indonesia, the world's top palm oil producer, has repeatedly promised to tackle the problem but hasn't stamped it out.<br/> Singapore, which also suffers bouts of the smog, has offered to send aircraft to help put out the fires.<br/> Last year the smog was so bad Malaysia put out a poor visibility alert to shipping in the Malacca Strait.<br/> Paul Chapman, Reuters
