GENEVA Countries remained at loggerheads on Monday over how to tackle plastic pollution , with only four days left to craft a landmark global treaty on reining in the ever-growing scourge. While plastic has transformed modern life, plastic pollution poses an increasing threat to the environment and the human body, and every day the garbage accumulates on land and in the oceans. The 184 countries meeting at the United Nations to sculpt a first international accord setting out the way forward