10 December 2015, Science Daily, Trees either hunker down or press on in a drying and warming western US climate. In the face of adverse conditions, people might feel tempted by two radically different options — hunker down and wait for conditions to improve, or press on and hope for the best. It would seem that trees employ similar options when the climate turns dry and hot. Two University of Washington researchers have uncovered details of the radically divergent strategies that two common tree species employ to cope with drought in southwestern Colorado. As they report in a new paper in the journal Global Change Biology, one tree species shuts down production and conserves water, while the other alters its physiology to continue growing and using water. As the entire western United States becomes warmer and drier through human-made climate change, these findings shed light on how woody plants may confront twin scourges of less water and hot weather. The authors, UW biology graduate student Leander Anderegg and biology professor Janneke Hille Ris Lambers, wanted to understand if different tree species employ similar coping strategies for drought, and how these strategies would affect their future ranges in a warmer and drier climate. They compared how two common tree species differ in terms of shape, growth rate and physiology across wet and dry portions of their native ranges. “We really wanted to identify the entire suite of strategies that a plant can use to grow in drier environments, as well as which of these strategies each tree would employ,” said Hille Ris Lambers. Read more here
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10 December 2015, Renew Economy, Paris, COP21: Negotiating blocks fracture in push for high ambition. In what may be one of the most significant developments ever seen in the 21-year history of the UN climate negotiations, a new coalition has emerged that combines the US, European nations, oil producers and vulnerable nations pushing for an ambitious outcome to the talks. The new grouping, called the Coalition for Ambition, has pulled in support from more than 100 countries with a range of economic drivers and motivations. They include Pacific nations, vulnerable African countries, oil producers such as Mexico, Norway and other European countries, and the US. Australia is not a member of the grouping because, Marshall Islands foreign minister Tony de Brum told RenewEconomy, it had not yet been invited. The grouping is seen by analysts as a sign that the most significant negotiating blocs at the Paris talks, the G77, representing China and developing countries, is showing signs of fracture. Apart from a common interest in finance, the needs of these countries now vary widely. China, facing crippling pollution at home, is prepared for a deal. India, seeking rapid growth, is playing hardball. The OPEC countries, such as Saudi Arabia and Venezuela, are trying to dilute the target. Poor and vulnerable nations want an ambitious and legally binding deal. The first signs of division emerged earlier this week, when Venezuela, Malaysia and Cuba tried to prise the grip of France on guiding the negotiations, only to be slapped down by the Marshall Islands and South Africa. The contrast between the oil producers of Saudi Arabia and Venezuela and Mexico was striking. “We are a big oil producer, but we still want high ambition,” the Mexico representative said on Wednesday. Noted one veteran observer: “I can’t recall a CoP (conference of the parties) where you have the US, EU, and the most vulnerable parties standing up and calling for the need to reference 1.5°C as a target.” Read More here
10 December 2015, Renew Economy, Adani hits panic button over Carmichael coal mine. In a seemingly desperate move the billionaire chairman of Adani has announced that early in November he met the new Australian Prime Minister, Malcolm Turnbull, and demanded legislation be passed to extinguish legal actions challenging the proposed Carmichael coal mine. On Saturday, a little over a month after his meeting with Turnbull, Gautam Adani complained to journalists that legal challenges against the $15 billion mine, railway and port project had caused banks to refuse to finance the project. “Ultimately, a decision lies with the politicians. They have to go to Parliament for enacting a special law which says that once government gives approval, no one can challenge it. That is what our request is to the Australian government. You come up with a special legislation which they have done in the past also,” Adani complained. “Even though there is no stay, because of the judicial review, no lender will finance the project. They do not know what will be the outcome,” Adani told journalists, including the Indian business news website LiveMint. Adani also bemoaned the dramatic slump in thermal coal process in the seaborne coal market. “In the meanwhile, coal prices have also slumped. We have to revive to the next cycle,” he said. Adani’s loneliness on display Adani’s comments, which reveal how isolated the company has become, are extraordinary for three reasons. Firstly, the fact that Adani has chosen to go public just over a month after the November 4 meeting suggests that Turnbull didn’t immediately accede to Adani’s demand to extinguish the legal rights. In other words, having failed with his behind-the-scenes lobbying, the company is now pinning its hopes on publicly pressing its case via comments to Indian journalists. Read more here
10 December 2015, The VERB, The 1.5 Placebo.Moments before the Paris climate agreement is to be decided upon, the draft text (as of 3pm Wednesday) still contains three different options surrounding its overall objective. The draft retains options to limit warming to below 2°C, below 1.5°C, or ‘well’ below 2°C with mention of scaling up efforts to stay below 1.5°C. As The Verb reported earlier in the week, half a degree of difference is highly economically significant, and for vulnerable nations may be the difference between persistence and functional destruction. For many small island states, a target of 1.5°C has been a long held objective that has gained increasing support in Paris. “To hold the temperature within 2°C is not an acceptable goal,” said Barbados Environment Minister Dr. Denis Lowe, who argued that “the goal should be 1.5°C, that is what will keep us alive.” Day one of the negotiations saw leaders of 106 states sign a statement calling for 1.5°C to become the long-term temperature goal. This was in lieu of the 2°C target, established in the 2009 Copenhagen meeting. Canada, France, Germany, the UK, Australia, China, and the US have since expressed support for including the 1.5°C target in some capacity. At first glance, this shift sounds good – it may even make people feel better about the possibility of avoiding the worst impacts of climate change. But it appears to be a placebo, and it may come at the expense of more effective responses. The challenge of limiting warming to below 1.5°C is enormous given current carbon dioxide concentrations and emissions. Some call it unfeasible. There are currently 400 parts per million of carbon dioxide in the atmosphere, a number that is growing at two parts per million per year. New research suggests that we would have to stabilise concentrations between 420 and 440 parts per million by 2100 to have even a 50% chance of holding warming below 1.5°C. Read More here