1 June 2017, The Conversation, Global stocktake shows the 43 greenhouse gases driving global warming. The most comprehensive collection of atmospheric greenhouse gas measurements, published today, confirms the relentless rise in some of the most important greenhouse gases. The data show that today’s aggregate warming effect of carbon dioxide (CO₂), methane (CH₄) and nitrous oxide (N₂O) is higher than at any time over the past 800,000 years, according to ice core records. Building on half a century of atmospheric measurements by the international research community, we compiled and analysed the data as part of a group of international scientists, led by Malte Meinshausen from the University of Melbourne in collaboration with CSIRO. Together, the data provide the most compelling evidence of the unprecedented perturbation of Earth’s atmosphere. They clearly show that the growth of greenhouse gases began with the onset of the industrial era around 1750, took a sharp turn upwards in the 1950s, and still continues today. Research has demonstrated that this observed growth in greenhouse gases is caused by human activities, leading to warming of the climate – and in fact more than the observed warming, because part of the effect is currently masked by atmospheric pollution (aerosols). The new collection of records comes from measurements of current and archived air samples, air trapped in bubbles in ice cores, and firn (compacted snow). The data cover the past 2,000 years without gaps, and are the result of a compilation of measurements analysed by dozens of laboratories around the world, including CSIRO, the Bureau of Meteorology’s Cape Grim Station, NOAA, AGAGE and the Scripps Institution of Oceanography, among others. Read More here
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29 May 2017, Independent, Great Barrier Reef can no longer be saved, Australian experts concede. The Great Barrier Reef – a canary in the coal mine for global warming – can no longer be saved in its present form partly because of the “extraordinary rapidity” of climate change, experts have conceded. Instead, action should be taken to maintain the World Heritage Site‘s ‘ecological function’ as its ecological health declines, they reportedly recommended. Like coral across the world, the reef has been severely damaged by the warming of the oceans with up to 95 per cent of areas surveyed in 2016 found to have been bleached. Bleaching is not always fatal but a study last year found the “largest die-off of corals ever recorded” with about 67 per cent of shallow water coral found dead in a survey of a 700km stretch. Now experts on a committee set up by the Australian government to improve the health of the reef have revealed that they believe the lesser target of maintaining its “ecological function” is more realistic. In a recent communique, the expert panel said they were “united in their concern about the seriousness of the impacts facing the Reef and concluded that coral bleaching since early 2016 has changed the Reef fundamentally”. “There is great concern about the future of the Reef, and the communities and businesses that depend on it, but hope still remains for maintaining ecological function over the coming decades,” it said. “Members agreed that, in our lifetime and on our watch, substantial areas of the Great Barrier Reef and the surrounding ecosystems are experiencing major long-term damage which may be irreversible unless action is taken now. Read More here
29 May 2017, Renew Economy, The myth that Adani coal is boom or bust for Queensland economy. There are a whole bunch of reasons why the Adani coal mine does not make sense: for the environment, the climate and on basic economics. The latest results from Adani Power, revealing over the weekend a $US954 million loss ($A1.3 billion) for the last financial year, its fifth loss in a row, and a growing preference for domestic over imported coal, not to mention the endless delays and requests for government support, underline the fact that the project makes no financial sense. And we know that on environmental and climate grounds, it makes no sense either. Rescuers minister Matt Canavan counts Adani’s benefits on the basis that the mine will last 60 years. That timeframe assumes that the world will not act on climate change. Another myth that refuses to go away, and seems to be prosecuted by everyone from the Coalition, to the state Labor government and to the local councils, is that the Queensland economy depends on Adani and its Carmichael mine for jobs and investment, and that the region’s economy would be devastated if the mine didn’t go ahead. It is simply not true. For a start, the inflated figures being pedalled by those state and federal politicians – the claim of 10,000 jobs – have been debunked by Adani itself, and its more modest investment plans now suggest maybe one-tenth of that, at best. And perhaps those politicians should have a look around and see what else is happening in the region. It is really quite stunning: some 4,200MW of large-scale wind and solar projects, all of them in central to northern Queensland, and billions of dollars worth of other projects in the pipeline, including biofuels and even a battery gigafactory in Townsville. Read More here
28 May 2017, The Guardian, Australia will still support Paris climate deal if Trump pulls out, Frydenberg says. The Turnbull government will support the Paris agreement on climate change regardless of whether or not the US president, Donald Trump, pulls out, the environment minister, Josh Frydenberg, has signalled. Trump upset world leaders on the weekend by refusing, at the conclusion of the G7 summit in Italy, to declare his support for the UN’s landmark treaty signed in Paris in 2015. Despite two days of urging from leaders from Europe, Canada and Japan to pledge his support for the agreement, Trump tweeted on Saturday: “I will make my final decision on the Paris accord next week!” His position left his counterparts frustrated, with some warning if the US pulled out of the Paris agreement other countries may want to reduce their commitments too. But when asked about Australia’s commitment in the wake of Trump’s tweet, Frydenberg told Guardian Australia the Turnbull government takes its emissions targets seriously “and we’re going on and trying to meet them”. “Issues about domestic climate change policy in the United States is a matter for the Trump administration,” Frydenberg said. He also pointed to a quote from Malcolm Turnbull from November last year, when Turnbull was asked if Australia would remain in the Paris agreement if then president-elect Trump followed through on his threat to cancel the emissions reductions commitments made by Barack Obama in December 2015. Turnbull had said: “When Australia makes a commitment to a global agreement, we follow through and that is exactly what we are doing.” Turnbull also described the Paris agreement as “a watershed and a turning point” that would deliver international action on climate change. “My government is committed to [the Paris agreement]. We have ratified it,” he had said. Read More here