There's 33 times more gold in the average handset than in the equivalent amount of ore. Yet the vast majority is never recovered.
For athletes, COVID-19 means more than cancelled competitions. Having their athletic goals put on hold and their training routines disrupted can take a toll on athletes' mental health.
The event may have been postponed until July 2021 because of the coronavirus pandemic, but there is already a big cultural legacy to Tokyo 2020.
An athlete who competed in the 1964 Tokyo Olympics says when the rescheduled Olympics take place, the Games can help rebuild societies in a humanitarian way through the spirit of Olympism.
Legally, the Tokyo organisers are protected from events that are out of their control. And it's unlikely broadcasters and sponsors would press legal claims during a global pandemic.
If the IOC does postpone the games, it will have to deal with consequences such as the impact on athletes, broadcasting obligations, insurance pay-outs and its brand reputation.
While sporting events around the world have put their seasons on pause, the International Olympic Committee has refused to cancel the Summer Olympics in Tokyo. For athletes, the delay is a dilemma.
As the new coronavirus has spread around the world, sporting matches and events have been staged behind closed doors, postponed and increasingly cancelled outright.
Could the Olympic Games be postponed for the first time in its history?
Canada's pioneering Black athletes may be unknown to many, but their efforts paved the way for others who went on to perform at the highest levels.
Whether it's global conflicts or communities in trouble, the solutions to peace and prosperity aren't only found by government. Sports, too, can bring about much-needed change.
From Peter O'Connor waving the Irish flag in 1906 to rainbow colours at Sochi, athletes have always used the Olympics to share their politics.
ABC's decision to ax its radio coverage of the 2020 Tokyo Olympics has been labeled a 'complete shame'. But from a financial viewpoint, the broadcaster had few other options.
The marathons in next year's Tokyo Olympics have been moved to Sapporo, because of concerns around Tokyo's extreme heat. The move, though controversial, will reduce risks to the athletes' health.
South Africa needs a new progressive sports movement that works for equality and peace based on mass participation and social justice.
Genetic testing could help us build targeted and effective training routines for athletes, but the emerging science could also introduce opportunity for discrimination in the sporting world.
As the cost of holding the Winter Games rises, local taxpayers around the globe are losing interest in hosting the event.
The best female athletes continue to be treated unfairly compared with male sportsmen.
Sports are segregated by sex. But what happens when athletes don't fit neatly into sport's definition of gender?
The great South African runner Caster Semenya may have competed in her last 800-metre race. She has been demonized for more than a decade, like many other female athletes before her.