Thursday, April 1, 2010

Drip irrigation


The sun has been shining so I've been spending much of my time preparing my garden and lawn, planting, stirring compost, raking...

But today I had to share the highlight. Part of the reason our lawn is a mixture of weeds and dead spots is because we don't like using water. Our sprinklers use several gallons to water the lawn or garden. In light of the new vegetable garden, which will require we give in and use water, we've invested in a system that should help limit some of the waste.

In a mastery of physics, we've elevated our rain barrel and hooked up a drip soaker hose, using the pressure of gravity alone to drip rain water into our garden. Since Nate also demands tools in his life run automatically, we also bought a timer which will help to ensure we don't leave the system dripping away precious rain water.

The major environmental impact of drip irrigation is water conservation. This happens for several reasons:

  • Only roots are watered, which is where the water needs to go.
  • Ground is more evenly watered.
  • Water is not lost to evaporation by being sprayed in the air.
  • Slower rate of application prevents a build up of water, and therefore reduces evaporation.
Hopefully our vegetables will agree that the new system is a valuable investment! 

Thursday, March 25, 2010

Ready for Earth Hour?

Saturday, March 27th, people all over the globe will be participating in Earth Hour, when millions of people around the world will turn out their lights for one hour as a testimony against climate change. Beautiful symbolism--people working together to stand for a greater goal. 


Earth Hour is scheduled from 8:30 to 9:30 in your local time zone.

Saturday, March 20, 2010

How about Genetically Modified Foods?

As I look at our meat and produce consumption, I've begun to wonder about genetically modified foods (GMOs-Genetically Modified Organisms). We have committed to pesticide-free, organic options, but I needed to do more research before making my decision about what to do with the genetic debate.

GMOs are foods that have been modified at a molecular level to contain desired traits (World Health Organization) . The traits are not necessarily selected for their flavor or nutrition, but for the ability to grow food quick, big, and cheap. For example, much of today's corn has been modified in a laboratory to include a gene extracted from a bacterium that is lethal to insect larvae. This saves a step in production and makes farming cheaper.

Certainly, there are economic and social advantages to GMOs. Food can be produced at a greater rate which means we can feed more people cheaper. And more food can survive pests, drought, herbicides, and extreme temperatures. Because of these advantages, farmers can't really afford not to use GMOs-most can't compete without them. In addition, GMOs can be used as medicine, to increase nutritional value, and to clean contaminated soil (Genetically Modified Foods: Harmful or Helpful?)

But I worry about how this scientific modification might impact the natural order. Some of the insect resistant plants can blow pollen onto other plants and inadvertently kill insects-which of course has it's own impact on an interlinked ecosystem. In addition, like some insects have developed resistance to pesticides, they can also become resistant to the genetic modifications. And when it comes to human health, not enough research has been done to demonstrate what the impact to humans might be. Allergies could potentially be exacerbated depending on which genes are used where (like peanut allergies). Some animal studies show possible harm,  but ultimately results are still inconclusive (ActionBioScience).

Finally, there's also the debate over ownership of the GMOs. Because they are engineered in a lab by a company, some companies have copyrighted their modifications, and it is illegal to use them without proper rights and purchasing. In fact, one farmer was sued by such a company for seeds that were growing on his property that he purports he didn't even plant; the seeds had blown off a passing truck. The Canadian Supreme Court ultimately ruled in favor of the company (Judgments of the Supreme Court of Canada). The social and economic implications of cases like this will continue to be debated as we continue to grow and develop food.

I try to stick to my priorities when making decisions about what to consume: environment, health, and human rights. According the the World Health Organization, all GMOs on the market today are safe for human consumption. However, just because it's available for consumption doesn't mean it's the gold standard in socially responsible products. So what's my decision about GMOs coming into our house? The jury's still out, and waiting for more research (ActionBioScience). I guess you'll just have to keep following the blog to find out.

Have an opinion about GMOs? Post a comment!

Monday, March 15, 2010

Indoor Greenhouse

I'm a little worried this "social responsibility" blog will turn into "Jodi's Joys of Gardening" if I'm not careful, but I'm so excited for my first real vegetable garden, I just can't help it!

Last week I started broccoli indoors. Within 2 days, seeds had sprouted! Every day I come home from work and they have grown so much. I don't think my husband shares my excitement; when they started growing like weeds I went on and on about the miracle of life, and he just nodded and said, "That's cool." I can only imagine how good food I've grown from seed will taste (I really hope all this work lives up to my fervent expectations).

Today I've started bell peppers, and I'm eagerly anticipating planting tomatoes in a few weeks. As my mom has said, My grandparents would be so proud!

Thursday, March 11, 2010

Empathy

I love this blog post on Seventh Generation's website. He says all the words I need to tonight.

Followers

 
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