ఒక వృద్ధి చెందుతున్న గ్రహం కోసం సానుకూల మార్పు, బహుళ-భాగాల సిరీస్ యొక్క 4వ భాగం

At festivals and celebrations in the US, it has long been common to see many balloons released to take flight and spread around the skies. But this practice will soon end. Florida and several other states are imposing fines for launching balloons into the sky.