15 November 2016, Energy Post, Biofuels turn out to be a climate mistake. Biofuels are usually regarded as inherently carbon-neutral, but once all emissions associated with growing feedstock crops and manufacturing biofuel are factored in, they actually increase CO2 emissions rather than reducing them, writes John DeCicco of the University of Michigan. According to DeCicco, biofuels are actually more harmful to the climate than gasoline. Ever since the 1973 oil embargo, U.S. energy policy has sought to replace petroleum-based transportation fuels with alternatives. One prominent option is using biofuels, such as ethanol in place of gasoline and biodiesel instead of ordinary diesel. Transportation generates one-fourth of U.S. greenhouse gas emissions, so addressing this sector’s impact is crucial for climate protection. Many scientists view biofuels as inherently carbon-neutral: they assume the carbon dioxide (CO2) plants absorb from the air as they grow completely offsets, or “neutralizes,” the CO2 emitted when fuels made from plants burn. Many years of computer modeling based on this assumption, including work supported by the U.S. Department of Energy, concluded that using biofuels to replace gasoline significantly reduced CO2 emissions from transportation.Biofuels are far from inherently carbon-neutral Our new study takes a fresh look at this question. We examined crop data to evaluate whether enough CO2 was absorbed on farmland to balance out the CO2 emitted when biofuels are burned. It turns out that once all the emissions associated with growing feedstock crops and manufacturing biofuel are factored in, biofuels actually increase CO2 emissions rather than reducing them. Read More here
Category Archives: Fossil Fuel Reduction
14 November 2016, The Conversation, Fossil fuel emissions have stalled: Global Carbon Budget 2016. For the third year in a row, global carbon dioxide emissions from fossil fuels and industry have barely grown, while the global economy has continued to grow strongly. This level of decoupling of carbon emissions from global economic growth is unprecedented. Global CO₂ emissions from the combustion of fossil fuels and industry (including cement production) were 36.3 billion tonnes in 2015, the same as in 2014, and are projected to rise by only 0.2% in 2016 to reach 36.4 billion tonnes. This is a remarkable departure from emissions growth rates of 2.3% for the previous decade, and more than 3% during the 2000’s. Given this good news, we have an extraordinary opportunity to extend the changes that have driven the slowdown and spark the great decline in emissions needed to stabilise the world’s climate. This result is part of the annual carbon assessment released today by the Global Carbon Project, a global consortium of scientists and think tanks under the umbrella of Future Earth and sponsored by institutions from around the world. Read more here
13 November 2016, Reuters, World CO2 emissions stay flat for third year, helped by China falls: study. World greenhouse gas emissions stayed flat for the third year in a row in 2016, thanks to falls in China, even as the pro-coal policies of U.S. President-elect Donald Trump mean uncertainty for the future, an international study said on Monday. Carbon dioxide emissions from fossil fuels and industry were set to rise a tiny 0.2 percent in 2016 from 2015 levels to 36.4 billion tonnes, the third consecutive year with negligible change and down from three percent growth rates in the 2000,s, it said. The Global Carbon Project, grouping climate researchers, welcomed the flatlining of emissions amid global economic growth. But it cautioned that the world was not yet firmly on track for a greener economy. “It’s far too early to say we’ve reached a peak in emissions,” co-author Glen Peters, of the Center for International Climate and Environmental Research in Oslo, told Reuters, referring to the findings issued at U.N. talks on climate change in Marrakesh, Morocco. “So far the slowdown has been driven by China,” Peters said, adding Beijing’s climate change policies would also be the dominant force in future since it accounts for almost 30 percent of global emissions. Chinese emissions were on track to dip 0.5 percent this year, depressed by slower economic growth and coal consumption. U.S. emissions were projected to fall by 1.7 percent in 2016, also driven by declines in coal consumption, according to the study published in the journal Earth System Science Data. By contrast, emissions in many emerging economies are still rising. Carbon dioxide is the main man-made greenhouse gas blamed for trapping heat, stoking disruptions to world water and food supplies with heat waves, floods, storms and droughts. Read More here
11 November 2016, Energy Post, Lumenaza creates regional electricity markets: “We want to connect up all 1.4 million solar PV producers in Germany with consumers locally”. A new software platform in Germany lets utilities buy and sell “regional electricity” by connecting up small producers with consumers. Start-up Lumenaza, founded three years ago, meets a growing demand for transparency, explains CEO and founder Christian Chudoba in an exclusive interview with Energy Post. Unlike a typical virtual power plant, Lumenaza targets tiny producers such as owners of rooftop solar. Its goal is to connect up all of Germany’s 1.4 million small power producers. Lumenaza was inspired by a family party in southern Germany. Christian Chudoba, today the company CEO, realised that everyone around him was generating electricity, but there was no way of buying this local produce. In response, he founded co-Lumenaza with his Siemens colleague Bernhard Böhmer in February 2013. Three years later, the company offers utilities a software platform that directly connects up small, local producers with consumers in the same region. Eight projects are up and running and another 3-4 expected by the end of the year. Chudoba comes from the world of software telecommunications at Siemens. He had the business idea; Böhmer, today Chief Technology Officer, supplied the software expertise. Oliver March, now CFO, jointed one year later bringing in the financial expertise. The two have created a product that they believe can help improve the acceptance for building more renewables in Germany. Just as consumers like to buy local, producers “like the idea of knowing where the electricity they produce is going”, says Chudoba. We call it a marketplace or “utility-in-a-box” software. The platform buys the electricity from local [renewables] producers and sells it to consumers. Read More here