• Offshore wind turbines vulnerable to Category 5 hurricane gusts

    Offshore wind turbines built according to current standards may not be able to withstand the powerful gusts of a Category 5 hurricane, creating potential risk for any such turbines built in hurricane-prone areas, new University of Colorado Boulder-led research shows.

    The study, which was conducted in collaboration with the National Center for Atmospheric Research in Boulder, Colorado, and the U.S. Department of Energy’s National Renewable Energy Laboratory in Golden, Colorado, highlights the limitations of current turbine design and could provide guidance for manufacturers and engineers looking to build more hurricane-resilient turbines in the future.

    >> Read the Full Article
  • Subsidies promote overfishing and hurt small-scale fishers worldwide

    Large-scale fisheries receive about four times more subsidies than their small-scale counterparts, with up to 60 per cent of those subsidies promoting overfishing.

    A recent study by the University of British Columbia found that while small-scale fisheries employ over 22 million people globally and directly support food security, of the estimated global fisheries subsidies of $35 billion (U.S.) in 2009, only 16 per cent was allocated to the small-scale fishing sector. Equivalent numbers for Canada are $1.1 billion (U.S.) and 5.8 per cent, respectively.

    >> Read the Full Article
  • Cold conversion of food waste into renewable energy and fertilizer has 'enormous potential'

    Researchers from Concordia’s Department of Building, Civil and Environmental Engineering (BCEE) in collaboration with Bio-Terre Systems Inc. are taking the fight against global warming to colder climes.

    Their weapon of choice? Cold-loving bacteria.

    In a study published in Process Safety and Environmental Protection, authors Rajinikanth Rajagopal, David Bellavance and Mohammad Saifur Rahaman demonstrate the viability of using anaerobic digestion in a low-temperature (20°C) environment to convert solid food waste into renewable energy and organic fertilizer.

    >> Read the Full Article
  • Are Bidets More Environmentally Friendly Than Toilet Paper?

    While bidets remain unpopular in America, they’re a familiar fixture in bathrooms all over the world. And they raise an inevitable question: Is it better for the environment if you wipe, or should you wash instead?

    The answer may surprise you — and could lead you to rethink your next bathroom remodel.

    >> Read the Full Article
  • New wave of extinctions predicted for vital food species

    Poaching, illegal fishing and deforestation are threatening more than quarter of UNESCO’s World Heritage sites, according to a report by the WWF  (World Wide Fund for Nature) — and the consequences are not just environmental.

    The report states that 18 out of the 50 threatened sites are in Latin American countries such as Argentina, Brazil, Colombia, Ecuador, Honduras, Panama and Peru. It also says the number could be higher because the illegal extraction of species in the region — a business with annual profits of almost US$ 2 billion — is not as well studied as it is in Africa or Asia.

    >> Read the Full Article
  • Handwashing: Cool Water as Effective as Hot for Removing Germs

    We all know that washing our hands can keep us from spreading germs and getting sick. But a new Rutgers-New Brunswick study found that cool water removes the same amount of harmful bacteria as hot.

    “People need to feel comfortable when they are washing their hands but as far as effectiveness, this study shows us that the temperature of the water used didn’t matter,” said Donald Schaffner, distinguished professor and extension specialist in food science.

    >> Read the Full Article
  • Envisioning the future of metal and mineral production

    Metals and minerals form the base of our society, with diverse applications infiltrating all corners of our lives, including agriculture, infrastructure, transportation and information technology. As populations grow, and demand for metals and minerals rises, enhancing the sustainability of the sector is a goal for many companies, communities and policymakers.

    To contribute to this, on May 11-12, MIT launched the Metals and Minerals for the Environment (MME) initiative with its first public symposium. MIT has long been home to research on myriad aspects of metals and minerals, and the MME Symposium serves to crystallize these efforts around the unique environmental and social challenges the sector faces.

    >> Read the Full Article
  • Tackling climate change: New options for BC's forest sector

    British Columbia’s forestry sector can potentially make a major contribution to meeting the province’s climate targets through using a mix of regionally-specific harvest and stand management techniques, bioenergy investments and creating more long-lived wood products.

    That’s a key message from a public presentation held this morning by the Forest Carbon Management Project, a multi-year collaborative effort created by the Pacific Institute for Climate Solutions (PICS), involving scientists from Natural Resources Canada (NRCan), the University of British Columbia (UBC) and other agencies.

    >> Read the Full Article
  • Roaming Bison Get Caught in Crossfire

    There’s safety in numbers for herd animals, but not if some members of the herd make poor decisions. That was one of the findings of research by  U of G integrative biology professor John Fryxell and U of G graduate Daniel Fortin, now a biology professor at Université Laval.

    They studied the movement patterns of bison in Prince Albert National Park in Saskatchewan and found that those animals that ventured outside the park into neighbouring farmland were hunted, which contributed to the herd’s population decline over a nine-year period from 2005 to 2013.

    >> Read the Full Article
  • Factories that forage

    Professor Steve Evans calls himself "an angry environmental optimist". Angry because he feels we are borrowing from the future, but optimistic because many of the problems with regard to the environment are perfectly solvable.

    "We have reached clean energy parity," he says. "Renewable energy is not just cleaner than other forms; it is now cheaper."

    >> Read the Full Article