Written Statement - Proposed actions following the publication of the independent research report on the impact of mass releases of sky lanterns and helium balloons (18 July 2013)
Datganiad Ysgrifenedig - Camau arfaethedig yn dilyn cyhoeddi’r adroddiad ymchwil annibynnol ar effaith rhyddhau llusernau awyr a balwnau heliwm ar raddfa fawr (18 Gorffennaf 2013)