25 October 2017, ABC News, Once were sceptics: What convinced these scientists that climate change is real? Up until a few years ago, Richard Muller was often quoted by sceptics as a credible, high-profile scientist who doubted the consensus on climate change. Today, he starts his lectures by stating a few things he believes to be facts. “Al Gore has grossly exaggerated global warming. And if you watch his movie you have more misinformation than information. In 2010, Professor Muller from Berkeley University was funded to carry out a comprehensive study by a group of individuals who doubted the Intergovernmental Panel on Climate Change (IPCC) data. They believed that urban heat islands, data-selection bias, and inaccurate climate models were being glossed over by scientists. ‘Don’t trust us’ approach key to convincing sceptics Professor Muller and his team — all of whom doubted climate change was happening or that carbon dioxide was its cause — were shocked to find a correlation between carbon dioxide emissions and warming. “That was the biggest surprise of all,” he said Read More here
Yearly Archives: 2017
19 October 2017, HiffPost, Chinese President Xi Jinping’s Climate Change Remarks Sure Seem To Be Aimed At Trump. As U.S. President Donald Trump continues to unravel legislation designed to fight climate change, Chinese President Xi Jinping is promoting his own country as a climate change leader. At the opening of the Communist Party congress in Beijing on Wednesday, Xi said China has taken a “driving seat in international cooperation to respond to climate change.” “No country alone can address the many challenges facing mankind. No country can afford to retreat into self-isolation,” Xi said. “Only by observing the laws of nature can mankind avoid costly blunders in its exploitation. Any harm we inflict on nature will eventually return to haunt us. This is a reality we have to face.” While he didn’t mention Trump by name in the address, some observers are interpreting Xi’s words as part of a campaign to present himself as a strong and responsible world leader while Trump takes aim at environmental protections and alienates U.S. allies. The Trump administration announced its withdrawal from the Paris climate agreement in June, and proposed repealing the Obama administration’s Clean Power Plan earlier this month. Trump also has a personal history of denying climate change, describing global warming as “mythical” and a “hoax” in past tweets. Read More here
18 October 2017, The Conversation, The government’s energy policy hinges on some tricky wordplay about coal’s role. The most important thing to understand about the federal government’s new National Energy Guarantee is that it is designed not to produce a sustainable and reliable electricity supply system for the future, but to meet purely political objectives for the current term of parliament. Those political objectives are: to provide a point of policy difference with the Labor Party; to meet the demands of the government’s backbench to provide support for coal-fired electricity; and to be seen to be acting to hold power prices down. Meeting these objectives solves Prime Minister Malcolm Turnbull’s immediate political problems. But it comes at the cost of producing a policy that can only produce further confusion and delay. The government’s central problem is that, as well as being polluting, coal-fired power is not well suited to the problem of increasingly high peaks in power demand, combined with slow growth in total demand. Coal-fired power plants are expensive to start up and shut down, and are therefore best suited to meeting “baseload demand” – that is, the base level of electricity demand that never goes away. Until recently, this characteristic of coal was pushed by the government as the main reason we needed to maintain coal-fired power. The opposite of baseload power is “dispatchable” power, which can be turned on and off as needed. Classic sources of dispatchable power include hydroelectricity and gas, while recent technological advances mean that large-scale battery storageis now also a feasible option. Coal-fired plants can be adapted to be “load-following” which gives them some flexibility in their output. But this requires expensive investment and reduces the plants’ operating life. The process is particularly ill-suited to the so-called High Efficiency, Low Emissions (HELE) plants being pushed as a solution to the other half of the policy problem, reducing carbon dioxide emissions. Read More here
18 October 2017, The Conversation, Federal government unveils ‘National Energy Guarantee’ – experts react. The federal government has announced a new energy policy, after deciding against adopting the Clean Energy Target recommended by chief scientist Alan Finkel. The new plan, called the National Energy Guarantee, will require electricity retailers to make a certain amount of “dispatchable” power available at all times, and also to reduce the electricity sector’s greenhouse emissions by 26% relative to 2005 levels by 2030. The government says it will save the average household up to A$115 a year after 2020, while also ensuring reliability. Below, our experts react to the new policy.Read more: Infographic: the National Energy Guarantee at a glance. Read More here