内容摘要：Now Brisbane is one of the fastest growing cities in Australia, and these outer northern suburbs are one of the main places it is squeezing people in. Residential development has exploded, and more families, priced out of locations closer to the city, have moved in to Moreton Bay.

Now Brisbane is one of the fastest growing cities in Australia, and these outer northern suburbs are one of the main places it is squeezing people in. Residential development has exploded, and more families, priced out of locations closer to the city, have moved in to Moreton Bay.

It is still a bit of a mystery how exactly they will affect marine life, but the signs so far are not good."The interesting thing is that this started in winter and spring, when most people assume marine heatwaves are only in summer," says Dr Jacobs.

People swimming off the west coast of the UK and Ireland may notice the warmer temperatures, although the waters are still cooler than at their peak in late summer.The worst impacts on species are likely to have been avoided for now because the temperatures have not gone above the upper limit that marine life can tolerate, explains Dr Jacobs.But it may be disrupting species' breeding patterns and could bring an influx of jellyfish that like warmer waters, including the huge barrel jellyfish, to seas and beaches.

It could also cause harmful algae to grow out of control, creating wide patches of green algae that can poison other life."We will be watching closely to monitor the impacts of the current UK heatwave on marine life and fisheries," John Pinnegar, Lead Advisor on Climate Change at the UK Centre for Environment, Fisheries and Aquaculture Science.

Previous heatwaves have caused harmful blooms of algae and in 2018 caused mass mortality among mussels.

In 2023, jellyfish sightings increased by 32% following a marine heatwave with temperatures 3-4C above average.Many of them are abducted from neighbouring countries and trafficked. They are enticed by baseless promises of finding them employment in the formal mining industry.

"Their passports are confiscated when they get to South Africa… It is common knowledge that these young boys are being abused," Mr Sefuli says.The BBC has spoken to miners who worked in at least two other illegal mines who told us they saw children being abused in the shafts where they were working.

Tshepo, not his real name, says he saw older men forcing young boys to have sex with them underground."In some instances, they did it for the money. Some are recruited solely for that purpose, because of the financial incentives that will come with the practice of maybe trading sex underground."