Climate change, species extinctions and tipping points
November 25, 2014 07:35 AM - North Carolina State University via EurekAlert.
Researchers from North Carolina State University have created a model that mimics how differently adapted populations may respond to rapid climate change. Their findings demonstrate that depending on a population's adaptive strategy, even tiny changes in climate variability can create a "tipping point" that sends the population into extinction.
Carlos Botero, postdoctoral fellow with the Initiative on Biological Complexity and the Southeast Climate Science Center at NC State and assistant professor of biology at Washington State University, wanted to find out how diverse populations of organisms might cope with quickly changing, less predictable climate variations.
Small farms the key to increasing food production
November 22, 2014 08:59 PM - , The Ecologist
All over the world, small farmers are being forced off their land to make way for corporate agriculture, writes GRAIN - and it's justified by the need to 'feed the world'. But it's the small farmers that are the most productive, and the more their land is grabbed, the more global hunger increases. We must give them their land back!
The data show that the concentration of farmland in fewer and fewer hands is directly related to the increasing number of people going hungry every day.
The United Nations declared 2014 as the International Year of Family Farming. As part of the celebrations, the UN Food and Agriculture Organisation (FAO) released its annual 'State of Food and Agriculture', which this year is dedicated to family farming.
ENERGY STAR's first multifamily properties announced today
November 13, 2014 08:31 AM - ENERGY STAR
Roughly one-third of the U.S. population lives in the country’s 500,000 multifamily buildings, and they spend $22 billion on energy every year. Until this year, apartment and condo managers lacked the tools to measure how much energy they were wasting and compare their performance nationwide. Meanwhile, energy costs for renters have risen by 20 percent over the past decade.
Today, a new era of savings will be ushered in when the U.S EPA announces the first set of multifamily properties to earn the ENERGY STAR certification. The ENERGY STAR first became available to the sector this September, after a three-year partnership with Fannie Mae to develop the scoring system for multifamily properties.
Baby Boomers Advocate for Sustainable Communities, Too
November 5, 2014 07:58 AM - Leon Kaye, Triple Pundit
If we are to believe much of what we see in the press, millennials will have to make a more sustainable world to get us out of the mess that the baby boomers are leaving behind. But such generalities may not be necessarily true. Even AARP, which has paid plenty of attention to the baby boomer vs. millennials conflict, has made the case that its membership is concerned about the same issues with which the younger generation is often preoccupied. For example, one may not intuitively think of AARP as a locus of information on smart cities and better urban planning. This powerful lobbying group, however, has an impressive archive that inspires its members to advocate for more “liveable communities.”
The Problem with Food Waste
October 31, 2014 08:03 AM - RP Siegel, Triple Pundit
Food waste is a horrendous problem in this country that no one seems to want to talk about. Yet food is the one product type that everyone consumes, and while a surprising number of people don’t have it, those that do are shockingly wasteful. As recently as 2012, close to 50 million people experienced food insecurity, not in Africa or Bangladesh, but right here in the USA. Worldwide, that number is over 1 billion people.
MIT finds switching to higher octane fuel would reduce carbon emissions
October 28, 2014 07:15 AM - MIT News
If the majority of light-duty vehicles in the United States ran on higher-octane gasoline, the automotive industry as a whole would reduce its carbon dioxide emissions by 35 million tons per year, saving up to $6 billion in fuel costs, according to a new analysis by MIT researchers.
In a study published in the journal Environmental Science & Technology, the team considered a scenario in which fuel is manufactured under a redefined octane rating — the measure of a gasoline’s ability to resist engine knocking during combustion.
How Offshore Wind Farms Affect Marine Species
October 17, 2014 06:07 AM - University of Maryland Center for Environmental Science
Offshore wind power is a valuable source of renewable energy that can help reduce carbon emissions. Technological advances are allowing higher capacity turbines to be installed in deeper water, but there is still much unknown about the effects on the environment. In a recent paper, University of Maryland Center for Environmental Science researcher Helen Bailey and colleagues review the potential impacts of offshore wind developments on marine species and make recommendations for future monitoring and assessment as interest in offshore wind energy grows around the world.
Which Form of Energy is the Cheapest?
October 16, 2014 10:47 PM - Kevin Mathews, Care2
Which kind of power is the cheapest? Listen to energy companies, and they'll insist that traditional forms like gas and coal are the way to go. Of course, they have money invested in keeping the existing systems in business. That's why the European Union commissioned an independent analysis to study the topic. According to the report, wind energy is the most cost-efficient way to supply power. When proponents of non-renewable energy point to costs, they intentionally overlook the overall economic impact that polluting causes. Once experts start to calculate the costs associated with public health and climate change that coincide with burning coal and gas, the true cost is far higher than initially reported. It's both irresponsible and shortsighted to ignore these environmental and health consequences from the equation.
Abundant natural gas will not slow climate change according to new study
October 16, 2014 06:22 AM - Pacific Northwest National Laboratory
A new analysis of global energy use, economics and the climate shows that without new climate policies, expanding the current bounty of inexpensive natural gas alone would not slow the growth of global greenhouse gas emissions worldwide over the long term, according to a study appearing today in Nature Advanced Online Publication. Because natural gas emits half the carbon dioxide of coal, many people hoped the recent natural gas boom could help slow climate change — and according to government analyses, natural gas did contribute partially to a decline in U.S. carbon dioxide emissions between 2007 and 2012.
Can renewables supply 100% of world's power by 2050?
October 16, 2014 06:08 AM - Tim Radford, The Ecologist
A global low-carbon energy economy is not only feasible - it could actually double electricity supply by 2050, while also reducing air and water pollution, according to new research. Even though photovoltaic power requires up to 40 times more copper than conventional power plants, and wind power uses up to 14 times more iron, the world wins on a switch to low-carbon energy. These positive findings are published in the Proceedings of the National Academy of Sciences by Edgar Hertwich and Thomas Gibon, of the Norwegian University of Science and Technology Department of Energy and Process Engineering.