26 June 2016, Climate News Network, China aims to halve meat eating.The Chinese government has issued guidelines to help wean its citizens onto a more vegetarian diet − offering huge potential health gains and cuts in greenhouse gases. In a bold challenge to individual appetites and societal norms, China says it wants to reduce its citizens’ consumption of meat by 50%. The country consumes 28% of the world’s meat, including half of its pork, although its per capita consumption is much less than in at least 14 other countries. The average American or Australian eats twice as much meat as the typical Chinese citizen. The Chinese health ministry has published new dietary guidelines recommending that people should eat from 40g to at most 75g of meat a day, which is close to the level recommended by British health authorities to limit the risk of developing bowel cancer. The guidelines’ main purpose is to improve public health, but if they achieve their aim they will also give a significant boost to efforts to cut emissions of the greenhouse gases (GHGs) that are stoking climate change and global warming. Livestock emissions Worldwide, 14.5% of greenhouse emissions come from the livestock industry, which is more than the contribution from the entire transport sector. Livestock emit the highly-potent greenhouse gas methane, although there have been proposals to tackle the problem by changing the animals’ diets. Land clearing, fertilisers and slurry also release large quantities of GHGs. The new guidelines could mean carbon dioxide equivalent emissions from China’s livestock industry would fall by 1bn tonnes by 2030, from a projected 1.8bn tonnes in that year. Read More here
Tag Archives: Emissions
17 June 2016, The Guardian, What would a global warming increase of 1.5C be like? How ambitious is the world? The Paris climate conference last December astounded many by pledging not just to keep warming “well below two degrees celsius,” but also to “pursue efforts” to limit warming to 1.5C. That raised a hugely important question: What’s the difference between a two-degree world and a 1.5-degree world? Given we are already at one degree above pre-industrial levels, halting at 1.5C would look to be at least twice as hard as the two-degree option.So would it be worth it? And is it even remotely achievable? In Paris, delegates called on the UN’s Intergovernmental Panel on Climate Change (IPCC) to report on the implications of a 1.5C target. They want the job done by 2018, in time to inform renewed talks on toughening emissions targets beyond those agreed upon in Paris. But the truth is that scientists are only now getting out of the blocks to address what a 1.5C world would look like, because until recently it sounded like a political and technological impossibility. As a commentary published online in Nature Climate Change last week warned, there is “a paucity of scientific analysis” about the consequences of pursuing a 1.5C target. To remedy this, the paper’s researchers, led by Daniel Mitchell and others at Oxford University, called for a dedicated program of research to help inform what they described as “arguably one of the most momentous [decisions] to be made in the coming decade.” And they are on the case, with their own dedicated website and a major conference planned at Oxford in the fall. So what is at stake? There are two issues to address. First, what would be gained by going the extra mile for 1.5? And second, what would it take to deliver? Read More here
16 June 2016, Climate Inside News, Antarctica’s CO2 Level Tops 400 PPM for First Time in Perhaps 4 Million Years. The concentration of heat-trapping CO2 pollution in the atmosphere has passed the 400 parts per million (ppm) threshold in Antarctica for the first time in at least 800,000 years, and possibly as long as four million years, scientists reported this week. The new measurements, reported by British and U.S. research stations, show that every corner of the planet is being affected by the burning of fossil fuels, according to British Antarctic Survey (BAS) scientists who track environmental changes on the frozen continent. “CO2 is rising faster than it was when we began measurements in the 1980s. We have changed our planet to the very poles,” sad British Antarctic Survey scientist Dr. David Vaughn, who reported on the readings from the Halley VI Research Station. Independently, researchers with the National Oceanic and Atmospheric Administration this week also reported a similar reading from the Amundsen-Scott South Pole Station. Read More here
13 June 2016, The Conversation, The hidden energy cost of smart homes. Light globes that change colour with the tap of an app, coffee machines you can talk to, and ovens that know exactly how long to cook your food: our homes are getting smart. These devices, just a few examples of what is known as “the internet of things” (or IOT), have been called the “next great disruptor” and “the second digital revolution”. One of the great hopes of this revolution is that it will help households save energy. Sensors can turn off lights and appliances when not in use, or turn the heating down when people go to bed. Smartphone apps can provide households with more insight into the energy use of their appliances. While estimates vary widely, industry proponents suggest that emerging connected home technologies could help households reduce their energy bills by 10-25%. Such claims are largely speculative given the absence of robust “before and after” research. Social research from Australia and the UK is revealing ways in which IOT might also increase energy demand. We have identified three “hidden” energy impacts which are rarely considered in IOT research or energy-saving predictions. New updates and hardware Read More here