Sea ice around Antarctica has swung from a record large maximum area covered to a record low in just three years, in a shift that could have implications for the global climate.
Jewel Topsfield and Amilia Rosa A white plume of steam is discharging continuously from Bali's Mount Agung amid ominous warnings the volcano will erupt for the first time in more than half a century.
Chris Zappone Two Moscow-linked figures have emerged as the loudest voices on Twitter amplifiying news and commentary about Catalonia's secession referendum.
Jewel Topsfield, Amilia Rosa Children stranded in evacuation centres are being taught to cover their noses, eyes, mouths and body if the air is thick with volcanic ash.
Paul McGeough North Korea emerged from Donald Trump's weekend twitterstorm, with a Monday threat of its own. Is it time to worry?
Jewel Topsfield and Karuni Rompies Bali's Mount Agung volcano has reached a "critical" stage with 500 tremors shaking the area a day.
Lindsay Murdoch Military-ruled Thailand says its navy will push Rohingya refugees back out to sea as fears grow of a new wave of boat people across Asia's waters.
Paul McGeough Trump has opened a volatile new front - against what had been a slow-burn, social justice protest by black sportsmen.
Latika Bourke London's spate of terror attacks could have been much worse, the mayor of London Sadiq Khan has said.
Latika Bourke Jeremy Corbyn's Labour Party has decided Brexit is not important enough to debate at the party's conference underway in Brighton, England.