29 September 2016, The Conversation, Record high to record low: what on earth is happening to Antarctica’s sea ice? 2016 continues to be a momentous year for Australia’s climate, on track to be the new hottest year on record. To our south, Antarctica has also just broken a new climate record, with record low winter sea ice. After a peak of 18.5 million square kilometres in late August, sea ice began retreating about a month ahead of schedule and has been setting daily low records through most of September. It may not seem unusual in a warming world to hear that Antarctica’s sea ice – the ice that forms each winter as the surface layer of the ocean freezes – is reducing. But this year’s record low comes hot on the heels of record high sea ice just two years ago. Overall, Antarctica’s sea ice has been growing, not shrinking. So how should we interpret this apparent backflip? In our paper published today in Nature Climate Change we review the latest science on Antarctica’s climate, and why it seems so confusing. Antarctic surprises. First up, Antarctic climate records are seriously short. The International Geophysical Year in 1957/58 marked the start of many sustained scientific efforts in Antarctica, including regular weather readings at research bases. These bases are mostly found on the more accessible parts of Antarctica’s coast, and so the network – while incredibly valuable – leaves vast areas of the continent and surrounding oceans without any data. In the end, it took the arrival of satellite monitoring in the 1979 to deliver surface climate information covering all of Antarctica and the Southern Ocean. What scientists have observed since has been surprising. Read More here
19 September 2016, The Guardian, Adani Carmichael coalmine faces new legal challenge from conservation foundation. Foundation appeals against ruling that endorsed mine’s approval by the commonwealth. The Australian Conservation Foundation has renewed its legal challenge to Adani’s Carmichael mine, appealing against a federal court ruling that endorsed its approval by the commonwealth. The ACF on Monday lodged an appeal against last month’s decision, which found the then federal environment minister, Greg Hunt, was entitled to find the impact on global warming and the Great Barrier Reef from the Queensland mine’s 4.6bn tonnes of carbon emissions “speculative”. The president of the ACF, Geoff Cousins, said Australia’s national environment protection laws were “broken” if the minister could approve “a mega-polluting coalmine – the biggest in Australia’s history – and claim it will have no impact on the global warming and the reef”. “If our environment laws are too weak to actually protect Australia’s unique species and places, they effectively give companies like Adani a licence to kill,” Cousins said. “Be in no doubt, Adani’s Carmichael proposal is massive and will lock in decades of damaging climate pollution if it goes ahead, further wrecking the reef. “The science is clear that we can have coal or the reef – but we can’t have both.” Read More here