Showing posts with label reduce. Show all posts
Showing posts with label reduce. Show all posts

Tuesday, 18 June 2013

E-Waste: What is it, and what do we do with it?

When humanity entered the Information Age, it was heralded as the end to paper waste.  Everything would be electronically created, storage, shared, and viewed.  Computers, the Internet, wireless, and the mass of new technology was going to remove the need for this kind of waste.  What wasn’t thought of was the new kind of waste that was going to be created as obsolete or broken down electronics and gadgets became replaced by the next version. 



E-waste has become a growing concern for most nations.  Landfills have become filled with our old computers, cell phones, printers, iPods, and other electronics that we take for granted.  However, our experience in dealing with waste in general is showing that we are prepared to deal with e-waste so long as we are committed to doing so.  Recycling programs, government initiatives, and social responsibility are leading the challenge in dealing with this by-product of evolving technology. 

What is E-Waste?

E-waste is what has become known as the discarded electronics and appliances that are commonly found in homes and businesses.  They are the computers, cell phones, printers, refrigerators, gaming consoles, and other consumer electronics that have become obsolete, broken, or surplus.  On average, the most common electronic devices are replaced frequently:

  • Cell phones – replaced every 22 months.
  • Desktop computers – replaced every 2 years.
  • Televisions – replaced every 10+ years.
  • Portable music players – replaced every 2-3 years.
  • DVD players – replaced every 4-5 years.
  • Printers – replaced every 5+ years.

Every year, there is between 20 to 50 million metric tons of e-waste, representing the faster growing portion of municipal waste. 

Historically, e-waste has contained many hazardous materials.  There was lead and mercury in old cathode ray tube televisions, cadmium in batteries, and the presence of hexavalent chromium, acrylamide, polybrominated biphenyls, and polybrominated diphenyl ether in many other electronics.  In throwing such waste into landfills, these hazardous materials and chemicals can leach into the soil and cause significant and irreparable damage to delicate ecosystems.



Statistics and Perspective

Our lives are centred around electronics.  The average home will purchase $1,179 worth of electronics every year.  To put this into perspective, approximately 5.1 million televisions were purchased in the United States for the sole purpose of being ready for the 2012 NFL Superbowl.  Over 99 million televisions are stockpiled for sale in the United States at any given time.  All of these will one day end up as e-waste. 

Initiatives to reduce the amount of e-waste the end up in landfills are underway.  One of the driving forces behind this is the amount of expensive metals that are used in the construction of electronics that can be reused and sold.  In 1 million cell phones, there is 24 kg of gold, 250 kg of silver, 9 kg of palladium, and 9,000 kg of copper.  These are able to reused in new electronics, reducing the amount required to mine them.  These metals are also commodities themselves, and are easily traded and sold as well.

What is Being Done

The reasons for reducing the amount of e-waste are many, from reducing the sizes of landfills, preventing hazardous materials from leaching into the environment, and creating businesses that harvest precious metals.  First, it is important to note that many of our electronics are now manufactured with less environmentally damaging materials.  The transition from CRT TVs to LED TVs removed the need for lead and mercury.  Cadmium is no longer used in batteries (still in rechargeable ones) and hexavalent chromium and acrylamide and no longer used in any electronic manufacturing.  Finally, flame retardant materials such as polybrominated biphenyls and polybrominated diphenyl have been phased out as safer materials have replaced them.  This has massively reduced the amount of hazardous materials that leach into the soil from e-waster that does make it to the landfills.


Canada has adopted the Federal Sustainable Development Strategy, a government initiative that amalgamates the efforts of more than 25 different agencies in combating environmental issues.  Through this, the Electronics Product Stewardship Canada, a not-for-profit organization, has been created.


It is currently operational in 7 different provinces with it pending approval in the 3 others.  The territories currently have no plans for inclusion under this initiative.  This has created a nationwide standard for e-waste recycling.  In addition, several major municipal governments in Canada have passed even stricter bylaws to further remove e-waste from their landfills.  This has led to direct cost savings for cities are landfill use is lowered.  It is estimated that British Columbia has saved almost $24 million through their recycling programs and Ontario has saved more than $65 million.  This has led to Canada becoming an international leader in e-waste management and recycling.  Even the 2010 Vancouver Winter Olympic medals were all made from recovered materials from e-waste! 

What Can You Do?

The reduction of e-waste begins with us.  We must evaluate whether we really need that next generation cell phone now or if our current and still working one is good.  Electronics that we are no long using can also be given to others to use, sent to recycling centres, or be donated to programs such as Computers for Schools or through partners of the federal Crown Assets Distribution.

We all want new technology and electronics.  However, we must be conscious in how we dispose of the ones we are no longer using.  In doing this simple act, we can lower the amount of e-waste that makes its way to landfills and can extend the lives of electronic devices through donation or recycle them so that their materials can be used in the new gadgets that we want!

Wednesday, 10 October 2012

Vertical Farming: The Rise of Food Sustainability

You may or may not have heard about a new type of farming called “vertical farming”; yes, it’s exactly what it sounds like! Vertical farmers utilize unique space by farming upwards, in and on top of skyscrapers and tall buildings. Vertical farming is a great way towards a more sustainable alternative to regular crop farming because it means you can buy locally grown food while not using up any land. This can reduce emissions created from food products that travel long distances and, with an abundance of buildings, it’s possible to have hundreds of thousands pounds of vegetables and herbs produced annually and sold locally!

Dickson Despommier, a professor at Columbia University, describes here why vertical farming could, and should, change the world: 

(Learn more at verticalfarm.com

With Vancouver vying to be one of the greenest cities in the world by 2020, vertical farming can be one of those ideas that really puts a city over the top. Enter Alterrus Systems Inc., a Vancouver based company that was formed for the very purpose of creating North America’s first ever “VertiCrop” farm. VertiCrop is a technological innovation that revolutionized farming by allowing vegetables and herbs to grow vertically without any soil, pesticides, or herbicides. VertiCrop can change the way we farm by providing fresh produce to local communities quicker than ever before. The first-ever VertiCrop farm in North America will be located on the roof of a parking lot located in downtown Vancouver and will produce around 150,000 pounds of green produce annually. The food will then packaged and sold locally under the brand name “Local Garden”.


A Problem of Sustainability
The world’s population is increasing. But we are running out of land for farming. 70% of all fresh water on the planet is used for agriculture. yet the runoff is unusable due to contaminants in the soil. To sustainably create the amount of food the world will require, farming needs to be modified. We require a combination of solutions and a paradigm shift in how we grow and distribute healthy food.
The World Needs to Grow Up
Vertical farming addresses the problems of increased demand for sustainable, nutritious food. Vast areas of underutilized urban space, such as empty buildings and rooftops, can be used to grow fresh produce at or near to where it is to be consumed. Contrast this with the status quo that ships produce to grocers from an average of 1,500 miles away. Transporting produce over such long distances not only generates carbon emissions, but a dependence on foreign oil. In addition, closed-loop vertical farming environments don’t require the use of harmful pesticides and herbicides, which totally eliminates contaminated runoff. And with only the minimal amount of water needed to grow a variety of fresh, healthy produce, this sustainable farming method helps conserve our planet’s most precious resource.
- Alterrus



In the United Kingdom, the team at Vertical Veg are teaching people how to grow vertical farms themselves, right on their balconies! By following their blog or attending classes, individuals can learn how to grow food to feed themselves, their families, and more. Depending how much space each person has, they can grow as little as a one plant to as much as the creators themselves! Vertical Veg reports how much they grow by weight and dollar value so readers can really see the difference this sustainable innovation can make. Check out their Growing Diaries to learn more.


If you're interested in growing your own food try searching local information to ensure you grow the proper crops at the appropriate times of year for the greatest success. Be sure to review your building and city bylaws as well to ensure you are operating within your limits! There are also many other sustainable agricultural projects popping up around the world so if you're interested in participating be sure to keep an eye out. In Vancouver the Strathcona Community Gardens and SOLEfood Farm are doing their part to support the greenest city. Restaurants such as the Forage are also going green by using local foods, emitting zero-waste, and installing solar panels. There are also food trucks that are being set up that sell food products made from local ingredients and utilize renewable energy.