Japan's global influence has waned in recent years. Showing that renewables can decouple emissions from economic success could help the country find its niche and spark a race to power the Earth.
Athletes and spectators are likely to encounter dangerously hot temperatures when Tokyo hosts the 2020 Olympic games. With two years to go, there's still time to take protective measures.
Should athletes who dream of making it to the Olympics start their journey as young children? Research shows that specializing in a specific sport at a young age is not the best approach.
Instead of showcasing a rising global power with a booming economy, the 2014 Games put a spotlight on Brazil's most serious economic recession since the 1930s, along with a host of social problems.
The Olympic Games are a theatre — sometimes farce, sometimes tragedy, reality TV, morality play or soap opera — where geopolitical, social and technological dramas are played out.