Traveling Smarter…and Greener

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airplane by sigmama

I am getting ready to travel home for a friend’s wedding. I grew up and went to college in the Midwest, but now live on the West Coast. That means, unfortunately, going home requires a cross-country flight.

While I can’t wait to be back home, I’m not looking forward to that flight. Not only do I have to deal with airport security, but flying is an incredibly greenhouse gas intensive means of travel. A round trip flight from Los Angeles to New York for one person will results in nearly 2 metric tons of carbon dioxide emissions. The average American is responsible for 17 metric tons of carbon dioxide emissions per year.  Just one flight across the country will eat up over 10% of the carbon footprint of the average American (not to mention that the average American carbon footprint is already higher than it should be!).

So I was happy to see last week that the New York Times posted several articles (here and here) with tips for greener travels.

I will definitely be incorporating some of these tips on my upcoming trip!

5 ways to lower your diet’s carbon footprint

Food accounts for about 17% of household emissions in the U.S. [1]. It’s a good place to start if you’re looking to be more sustainable.

1. Go veggie.

Vegetarian diets emit about 3.8 kg of carbon dioxide per day; vegans diets emit just 2.8 [2]. Going vegetarian or vegan is a surefire way to lower your diet’s carbon footprint.

With that said, going vegan, or even vegetarian is a huge lifestyle change. A pescatarian diet (the only meat in the diet is fish) has the same per-day emissions of a vegetarian diet. If you just can’t bring yourself to go veggie, you can always…

2. Skip the Burger.

Meat heavy diets result in 7.2 kg of carbon dioxide emissions per day [2]. That is MORE THAN DOUBLE the emissions of a vegan diet. Beef is the most carbon dioxide intensive meats out there. It results in five times more greenhouse gas emissions than pork or chicken [3].

3. Reduce waste.

We’ve all gone to the super market and bought a big bag of spinach only to have it go uneaten. It gets soggy and gets tossed in the trash. But food waste is one of the world’s largest sources of emissions. Did you know that  a full 1/3 of food produced for human consumption is thrown away? The carbon dioxide emissions of food waste ranks behind only the US and China as the worlds top emitter [4].

Here a few strategies for lowering your diet’s carbon footprint by lowering your waste:

  • Have a plan before you go to the super market and buy only what you’ll eat.
  • If you notice your fridge is starting to fill up make a dish that uses as much of what you have as possible. I like to call these my everything-but-the-kitchen-sink dishes!
  • Notice what you are always throwing out. If your always throwing it out, do you really need to buy it? Is there a way for your to better incorporate it into your meals throughout the week?
  • Learn how to store your food properly. A quick google search will turn up the best practices for storing tricky things like herbs, lettuce, and celery. Learning this has helped me cut down my food waste drastically.

4. Eat local.

The distance your food travels to get to you can have a bit impact on the carbon emissions associated with what you eat. Nowadays, we can have strawberries during the middle of a Midwestern winter, usually flown in from California or South America. The average meal prepared in the U.S. consists of ingredients originating from 5 different countries [5]! Buying your food locally results in a significant reduction in the carbon emissions attributable to your diet [5].

To start eating local you can try:

  • Check out your local farmer’s market. I’ve found that their produce is fresher than the stuff in the super market and it’s often cheaper. Plus, fresher food will last longer.
  • Join a CSA. CSA stands for community supported agriculture. In a CSA group, subscribers pay a  subscription fee to a local farm in exchange for a weekly box of fresh veggies, greens, and fruit.

5. Go low packaging.

Individually wrapped snack bars and small food packages are very convenient. However, they come at the cost of higher emissions. Products and packaging account for 44% of U.S. greenhouse gas emissions [6].

You can go low packaging by:

  • Buying in bulk.
  • Switching out packaged snacks for fruits and nuts.
  • Get your own water bottle and skip the disposable plastic bottles.
  • Try making your favorite packaged products from scratch.
  • If you do need to buy a packaged product by the one with the smallest amount of packaging or the most recyclable packaging.

 

An apartment garden – my own little piece of green

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Fresh Herbs on my Balcony  – Suzette

Growing up, my grandmother kept a large garden in her backyard. She grew sunflowers, berries, tomatoes, peppers, cucumbers, and more that I cannot remember. The bright summer mornings helping her in the garden and then devouring our fresh harvest are some of my favorite memories of childhood. One day, my youngest sister was so excited to eat the first cucumber of the year that she just bit into it as if it was an apple!

I’ve grown up and moved away from home. Like so many people my age, I don’t own a home. I live in a dinky little apartment 3 floors above the nearest patch of land and that land is mostly concrete.

After a year of living here, I got sick of never having fresh food and throwing away whole bunches of store bought herbs that went bad too quickly. A full 1/3 of food produced for human consumption is thrown away and that the carbon dioxide emissions of this waste ranks behind only the US and China as the worlds top emitter*. Knowing that, I feel terribly guilty every time I had to waste food. That is why I’ve resolved to start my very own, very little garden!

Starting an apartment garden is very different from turning up some soil in your back yard, so I decided to start small. Basil, mint, and parsley all now grow happily on my window sill. I started with a little kit from ModSprout, which was actually Christmas gift from my grandmother. This simple kit has given me a good starting place and with a little experience under my belt, I’m preparing to extend my little garden out on to my balcony. Fresh tomatoes, here I come!

*Further reading: http://www.fao.org/docrep/018/i3347e/i3347e.pdf

The hidden energy costs of cell phones

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Photo credit: Untitled by Johan Larsson

We might think the most consequential thing that could happen with regard to our phones is losing it. However, the energy use and emissions attributable to technology is anything but inconsequential.

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Photo credit: Powerplant by Wladimir Labelkovsky

As smartphone and computer use has grown, data center energy use has grown as well. Data centers are the backbone of the Internet, providing storage and other computing services that are needed. Data centers account for 2% of U.S. electricity use and 2% of global carbon dioxide emissions!

If you look closely at your electricity bills, you might find that charging your cell phone requires just 3.8kWh a year (only 47 cents!). However, it takes 278kWh to make your cellphone. If you add it all up manufacturing 4 cellphones requires the same energy as manufacturing one car!

The energy we use in our daily lives isn’t always obvious. It’s definitely something we all should consider before we line up to buy the next iPhone.