Haze continue to persist in Singapore

Singapore haze has lasted more than one month, this was caused by Indonesia firms and farmers who engaged in illegal slash and burn practices, this is a way of inexpensively clearing the land, this year (2015) becomes more severe as someones says it is because of dry conditions caused by El Niño phenomenon make the fire spread more easily and widely, at the end of September, the PSI(Pollutant Standard Index) hit a record high with a reading of 341, the MOE announced the schools to be closed, it is said 2015 haze crisis has becomes the worst records in the region, even outstripped the 1997 haze crisis which loses 9 billion US Dollar.