7 May 2016, The Conversation, Sea-level rise has claimed five whole islands in the Pacific: first scientific evidence. Sea-level rise, erosion and coastal flooding are some of the greatest challenges facing humanity from climate change. Recently at least five reef islands in the remote Solomon Islands have been lost completely to sea-level rise and coastal erosion, and a further six islands have been severely eroded. These islands lost to the sea range in size from one to five hectares. They supported dense tropical vegetation that was at least 300 years old. Nuatambu Island, home to 25 families, has lost more than half of its habitable area, with 11 houses washed into the sea since 2011. This is the first scientific evidence, published in Environmental Research Letters, that confirms the numerous anecdotal accounts from across the Pacific of the dramatic impacts of climate change on coastlines and people. A warning for the world Previous studies examining the risk of coastal inundation in the Pacific region have found that islands can actually keep pace with sea-level riseand sometimes even expand. However, these studies have been conducted in areas of the Pacific with rates of sea level rise of 3-5 mm per year – broadly in line with the global average of 3 mm per year. For the past 20 years, the Solomon Islands have been a hotspot for sea-level rise. Here the sea has risen at almost three times the global average, around 7-10 mm per year since 1993. This higher local rate is partly the result of natural climate variability. These higher rates are in line with what we can expect across much of the Pacific in the second half of this century as a result of human-induced sea-level rise. Many areas will experience long-term rates of sea-level rise similar to that already experienced in Solomon Islands in all but the very lowest-emission scenarios. Read More here
Monthly Archives: May 2016
6 May 2016, The Guardian, Greg Hunt: no definite link between coal from Adani mine and climate change. The federal environment minister has argued in court that coal from Australia’s largest coalmine would have no “substantial” impact on climate change and as a result he did not need to consider whether it would affect the Great Barrier Reef. The Australian Conservation Foundation challenged Greg Hunt’s approval ofAdani’s Carmichael mine, alleging he failed to consider the impacts the burning of the coal from the mine would have on climate change and hence on the Great Barrier Reef. Scientists have found the current mass bleaching event affecting 93% of the reefwas made 175 times more likely by climate change and would become a biennial event within 20 years. After that point, the continued existence of the reef would be in doubt. In federal court documents obtained by Guardian Australia, Hunt denied he failed to consider the impacts of coal on the reef. In the outline of submissions filed on behalf of the minister, the Australian government solicitor explains that the minister did not think the burning of the coal “would be a substantial cause of climate change effects” and would have “no impact on matters of national environmental significance”. Read More here
5 May 2016, The Guardian, We’ve been mayors of New York, Paris and Rio. We know climate action starts with cities. The Paris climate agreement, already signed by more than 175 countries, was successful in large part because national governments recognized cities’ progress in reducing carbon emissions. On Thursday, as world leaders gather in Washington DC to discuss how to reach the goals set in Paris, they should focus on helping cities do even more, and act faster, to reduce those emissions. Cities account for most of the world’s carbon emissions, and their share will continue to increase as cities increase in size. Today more than half of the world lives in cities, and by 2050, two-thirds will. Every day, the world’s cities grow by about 60 square kilometers – an area equal to New York City’s borough of Manhattan. How that growth takes shape in the next few years will determine whether we can avoid the worst impacts of climate change, and it will also have major economic and public health implications. Cities planned around affordable mass transit expand economic opportunity while cleaning the air we breathe. Smart buildings and land use save energy and protect people from extreme weather events, helping cities avoid enormous potential costs. Read More here
4 May 2016, BBC News, The chasm cutting an Antarctic base adrift. Thirty-six years after he first went there as a young meteorologist, BBC Weather’s Peter Gibbs returned to the current, sixth incarnation of the British Antarctic Survey’s Halley Research Station. There, on “a day with no horizon”, he explored the chasm threatening to cast it adrift. The Brunt Ice Shelf feels like another planet even on the sunniest of days, but when the cloud closes in it turns downright eerie as sky, snow and ice blend into one diffuse white light. Approaching the chasm, the only hint of this 100m-wide gash is a neon glint of blue from the depths of a crevasse in its far wall. Read More here