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A Comprehensive Energy Productivity Portfolio
October 10, 2013 03:17 PM - Robin Blackstone, ENN
Like a good financial portfolio, it appears that diversification is a successful strategy for America’s Energy Productivity according to the environmental action group, Natural Resources Defense Council. But, the NRDC notes that while the portfolio clearly should include a combination of all energies, the single most effective tool in maximizing our energy economy is to reduce consumption and extract the most out of every energy dollar spent.
European Union on Track to Reach 2020 Climate Goals
October 10, 2013 08:52 AM - Edouard Stenger, Clean Techies
According to the European Environment Agency, the European Union is already close to its 2020 climate objectives as it has decreased its emissions by no less than 18 percent between 1990 and 2012. Additionally, renewable energy sources such as wind, solar and many others were already accounting for 13 percent of the energy mix in 2011. The European Union have a comprehensive energy and climate plan as it has three objectives: 1. to slash its greenhouses gases emissions by 20 percent from 1990 to 2020 ; 2. to increase its energy efficiency by 20 percent ; 3. to increase its share of renewable energy sources to 20 percent of the mix by 2020.
Climate modeling update
October 10, 2013 06:30 AM - Roger Greenway, ENN
Climate models keep getting better but still can't predict with great certainty. So scientists run multiple models and look at the results of each model and calculate a consensus projection. The intent is to reduce the level of uncertainty by using a range of models with different types of shortcomings to hopefully improve confidence in the results. The seesaw variability of global temperatures often engenders debate over how seriously we should take climate change. But within 35 years, even the lowest monthly dips in temperatures will be hotter than we've experienced in the past 150 years, according to a new and massive analysis of all climate models. The tropics will be the first to exceed the limits of historical extremes and experience an unabated heat wave that threatens biodiversity and heavily populated countries with the fewest resources to adapt. Ecological and societal disruptions by modern climate change are critically determined by the time frame over which climates shift. Camilo Mora and colleagues in the College of Social Sciences' Department of Geography at the University of Hawaii at Mānoa have developed one such time frame. The study, titled "The projected timing of climate departure from recent variability," will be published in the October 10, 2013 issue of Nature and provides an index of the year when the mean climate of any given location on Earth will shift continuously outside the most extreme records experienced in the past 150 years.
Green Aerosol Cans? GreenSpence Says It Doesn’t Have To Be A Contradiction
October 9, 2013 01:11 PM - ISRAEL21c, NoCamels
They squirt, spray and lather. Some even give lifesaving bursts of medicine. But truth be told, the aerosol spray container hasn’t changed much in the last 60 years, says Gadi Har-Shai, CEO of the Israeli startup GreenSpense. Traditional aerosols are polluting and dangerous. So he invented a new alternative, the eco-sleeve, using nanotechnology.
October 9, 2013 12:51 PM - Mrinalini Erkenswick Watsa , MONGABAY.COM
Nitrogen is colorless, odorless and tasteless, but all life on earth depends on it. Without it, our bodies cannot synthesize the nucleic acids that make up our DNA, or the protein-forming amino acids that are the very building blocks of our cells. Problematically, atmospheric nitrogen is relatively inert or nonreactive. This has created a unique biological dependency on a process called nitrogen fixation—where inert nitrogen from the atmosphere is converted into more reactive ammonia, a major component of soil fertilizers. A recent discovery has revealed just how reliant recovering forests are on nitrogen fixation, and how some forests can even manipulate it to speed up their abilities to 'heal' themselves. Many tropical forests today have been exploited for agriculture, mining, fossil fuel exploitation, and other human use.
Solar for Sure
October 8, 2013 03:52 PM - The Vote Solar Initiative, Clean Techies
Yesterday, Governor Brown signed into law AB 327, a comprehensive rate reform bill to create more certainty for Californians who want to go solar, ensuring rooftop solar is here to stay in California! The Governor issued a signing statement for AB 327 directing the CPUC to ensure that customers who go solar under the current 5% program cap will get to stay under current program rules for the life of their solar array. That's important direction for the agency as it implements the bill in 2014.
Australian Environmental Politics in Denial
October 7, 2013 01:18 PM - Daniel Yeow, Worldwatch Institute
Australia seems to be going backwards in time with regard to environmental politics. A startlingly high number of people there deny climate change. Most Australians do believe in it, but in a country that no longer has a science minister, the newly-elected conservative government is populated by "leaders" who believe that it is some kind of conspiracy. The media that the average Australian consumes is overwhelmingly populated by sources which are owned by people of a highly conservative and libertarian belief. Libertarianism—the belief that people should be free to do as they wish so long as they do not impinge on the freedom of others, is a decidedly human-centric philosophy and as such, large-scale environmental problems are generally not well-handled. In the minds of people like Rupert Murdoch, among others, environmental regulations are an unnecessary burden on people's freedom, and even if you don't really believe that, if that's what you read in the newspaper every day, then that's what you will be led to believe.
Atmospheric aerosols and how they influence climate
October 7, 2013 05:57 AM - Roger Greenway, ENN
Climate models are evolving, and are getting more accurate, but they are still incomplete. Our atmosphere is very complex, and there are factors that even current models don't address, or address with an in-complete knowledge of the physical processes involved. This leads to inaccuracies that create uncertainty in the results of climatic projections. Aerosols are an important part of atmospheric dynamics, and their mechanisms of formation are not fully understood. University of Leeds experts have helped scientists get a step closer to understanding how aerosol particles are formed in the atmosphere and the effect these particles have on our climate. Working with scientists from the CLOUD experiment at the European Organisation for Nuclear Research (CERN), in Geneva, climate change experts from the University have shown that amines — atmospheric vapours closely related to ammonia, largely derived from activities such as animal husbandry — combine with sulphuric acid to form highly stable aerosol particles at rates similar to those observed in the lower atmosphere.
Climate Change May Increase Mercury Content in Fish
October 4, 2013 09:02 AM - Editor, ENN
Mercury pollution can be a serious health threat as once mercury enters our body, it acts as a neurotoxin, interfering with the brain and nervous system. Mercury is emitted to the air by power plants and other industrial facilities and becomes a serious threat when it settles into oceans. As the mercury enters waterways, naturally occurring bacteria absorb it and the pollutant makes it way up the food chain as larger fish consume smaller fish. As an example, mackerel, swordfish, tuna, and grouper rank high when it comes to mercury content. We have known about the effects of mercury in fish for some time now, however, looming changes in climate could make fish accumulate even more mercury, according to a study in the journal PLOS ONE.
Phasing Down HFCs with the Montreal Protocol
October 3, 2013 03:39 PM - Mark W. Roberts and Avipsa Mahapatra, Triple Pundit
On September 27, U.S. President Barack Obama met with Indian Prime Minister Manmohan Singh to discuss how to improve ties on a number of issues between the countries, including how to support efforts to phase-down the super greenhouse gases HFCs (hydrofluorocarbons). HFCs, primarily used in refrigeration, air conditioning, and foam blowing, are extremely harmful to the climate as they are hundreds and thousands of times more potent than carbon dioxide (CO2).