On Reef’s health

Peter Ridd is a geophysicist, Bob Carter is a palaeontologist. Stop using them against the world’s climate science experts. Maggie, Kanimbla Heights Peter Campion (CP, 18/4). Scientists say parts are dead. They don’t say the whole Reef is dead. Bev, Atherton or need is un-Australian. Perhaps the ABC should be by subscription so those who want it can pay for it directly. Peter Campion, Tolga

WASTE: One texter suggests that the banning of single use plastic bags will lead to increased sales of garbage bags.