In the pat， a great many people ued to ue dipoable platic bag for hopping and other purpoe。 However， the exceive ue of dipoable platic bag ha led to great damage both to environment and to people' health。
On the one hand， it take about 200 year for a buried platic bag to decompoe and be aborbed by the oil。 On the other hand， the ue of dipoable platic bag will indirectly do harm to people' health， which i le known to the public。 Sometime people buy hot food packed into dipoable platic bag to ave the time and labor in wahing their dining utenil。 Yet they are not informed that the chemical in the bag will be releaed in high temperature。 Therefore， they are eating the poionou tuff while enjoying the taty food。
It' enlightening and ignificant that our government ha banned the free proviion of dipoable platic bag in upermarket。 Trial practice ha hown coniderable reduction in the conumption of bag。 In a word， fewer platic bag will bring u the utainable development of our earth。