A stalwart of the Mexican landscape is finding a second life powering up buildings in the desert, and it is proving to be an unusually sustainable biofuel.

An audience member writes that "12pm" does not exist. Are they right? ABC Language researcher Tiger Webb investigates.

Moss balls seem to roll around glaciers in a coordinated way, and researchers can't explain why the whole group moves at about the same speed and in the same direction.

For decades, Ayatollah Khamenei has professed enmity with America. Now his regime is threatened from within the country.

It's not grass growing along the Antarctic Peninsula. The culprits are a lot smaller.

Snow algae bloom along the coast of Antarctica and are likely to be biogeochemically important. Here, the authors produced the first map of such blooms, show that they are driven by warmer temperatures and proximity to birds and mammals, and are likely to increase given projected climate changes.

In the Abruzzo region of Italy, harvesting the lucrative spice is a centuries-old tradition, infused with a deep-seated passion for the land and its history.

Hockey is not unique. It has the same problems that plague our whole world.

Dabbawalas deliver hundreds of thousands of meals on foot and by bike in one of India's busiest cities every day. The new wave of food-delivery start-ups wants to know how they do it.

Although common Soviet people mostly adored jazz, the country’s leaders didn’t always share such love for it. Generally accepted at first, jazz was soon proclaimed as a symbol of the hated Western world in the USSR.

Secret internal documents reveal how church officials have protected priests accused of pedophilia by moving them from country-to-country, sometimes as far away as to Africa. They call it 'the geographical solution'. Even Pope Francis is implicated. When he was bishop of Buenos Aires, he tried to influence the Argentinean justice system in order to protect a convicted priest. From Cameroon to Argentina, America to France and Italy, this investigation traces the transfers of pedophile priests.

Chris Dupee spent nearly 10 years serving in the Canadian Armed Forces, including an eight-month tour in Afghanistan. When he came home, PTSD took over his life.

Despite cultural upheavals, highlands residents persisted

Spaniard Alejandro Cao de Benós found his calling in socialist North Korea – not least because of a shared ideology – and is keen to clear misconceptions about the health of the hermit kingdom and its supreme leader.

How immigration, ingenuity and the American spirit shaped a US fried chicken “war” that’s been simmering for four generations.

Of all the volcanic eruptions to shake our planet in the last 2 million years, the Toba super-eruption in Sumatra, Indonesia, was one of the most colossal. But it may not have been the global catastrophe we once thought it was.

The team included researchers from CSIRO, Australia's national science agency, the Australian Institute of Marine Science (AIMS) and the University of Melbourne.

A forthcoming facility in California promises to transform tens of thousands of tons of landfill garbage into hydrogen each year. It hopes to be running by 2023.

And I worry my friends in San Francisco are on the same path

What seems like a simple hobby can take you across the world.