Editor's note

Kenya’s Eliud Kipchoge ran the second fastest marathon in history in London earlier this year. His win cemented his status as the king of the modern marathon and once again pundits began to deliberate on the source of his seemingly superhuman abilities. Vincent Onywera examines the Kipchoge phenomenon and concludes that science is yet to find the elixir of his endurance.

China and the US are embroiled in a bruising battle. While the stand-off between the two economic giants has global implications, Nick Bisley doesn’t believe it will tip the world back into the kind of ideological and geopolitical competition seen during the Cold War.

Julie Masiga

Peace + Security Editor

Top Stories

Kenya’s Eliud Kipchoge on his way to wining the London Marathon in April 2019. EPA-EFE/Facundo Arrizabalaga

Kipchoge’s marathon success remains a mystery: some clues from my research

Vincent O. Onywera, Kenyatta University

Many factors have been suggested to explain the dominance of Kenyan middle and long distance runners, and many have been disproved

Though a Cold War between China and the US seems unlikely, there are still repercussions of a deepening rift. Roman Pilipey/EPA

US-China relations are certainly at a low point, but this is not the next Cold War

Nick Bisley, La Trobe University

The first great power rivalry of the 21st century has begun – and it's unlike any rivalry the world has ever seen.

Energy +Environment

Bonobo mothers meddle in their sons’ sex lives – making them three times more likely to father children

Ben Garrod, University of East Anglia

Bonobos may be the most promiscuous species on the planet. From meddling mothers to feeding ground excitement, their sex lives are unique in the animal world.

Agroforestry at 40: how tree-farm science has changed the world

Meine van Noordwijk, World Agroforestry Centre (ICRAF)

Because the interactions between trees, soils, crops and livestock can be positive or negative, their relationship must be balanced and understood.

Turning methane into carbon dioxide could help us fight climate change

Pep Canadell, CSIRO; Rob Jackson, Stanford University

Removing human-related methane from the atmosphere could reduce global warming by 15%.

Climate change: sea level rise could displace millions of people within two generations

Jonathan Bamber, University of Bristol; Michael Oppenheimer, Princeton University

Sea levels could rise by two metres by 2100, sparking a refugee crisis unlike anything the world has ever seen.

Politics + Society

How Cape Town’s “Gayle” has endured – and been adopted by straight people

TL McCormick, University of Johannesburg

Gayle remains as popular as ever -- but it has evolved, shifted and become a language spoken by more than just gay men.

A global survey sheds new light on how bad events affect young people

Robert W. Blum, Johns Hopkins Medicine

The data suggest that boys experience as much disadvantage as girls.

En français

Horizon, ombres et lumière : secrets de trous noirs

Frédéric Vincent, Observatoire de Paris

La publication d’une « photo » d’un trou noir en avril dernier a fait grand bruit. Mais qu’il y a-t-il derrière cette image ?

Une traduction citoyenne pour (enfin) lire le dernier rapport du GIEC sur le climat

Valérie Masson-Delmotte, Université Paris-Saclay; Youba Sokona, UCL

Des citoyens se sont attelés à traduire en plusieurs langues le résumé pour les décideurs du dernier rapport du GIEC. L’objectif, rendre accessible un texte essentiel et pourtant très peu lu.

En español

¿Cuál es el papel de los medios de comunicación al hablar de inmigración?

Cecilia Estrada Villaseñor, Universidad Pontificia Comillas

El papel de la prensa a la hora de cubrir determinados temas es crucial para que los ciudadanos configuren su mente alrededor de ellos. Por eso, contextualizar los hechos es esencial.

Así benefician las relaciones sociales a las personas mayores

Elvira Lara Pérez, Universidad Autónoma de Madrid

España será el país más longevo en 2040. Pero los mayores necesitan relaciones sociales de calidad para tener una vida plena e integrada. La promoción de su bienestar debe ser prioritaria en las políticas sociales.