Tagged: ecological footprint

Earth overshoot day [infographic]

Last Monday marked a pity event: Earth’s population reached so-called ‘Earth Overshoot Day’. This is the moment when our demand for natural resources exceeds the regenerative capacities of the planet who replenish them. In a way, we are now biting into our planet’s savings account for the rest of the year. With the current population and its living standard, we actually need 1.6 planets to support us.

But not all countries are to blame. Living like an Aussie or a Congolese is a whole world of difference. Some countries also just happen to be lucky with a wealth of natural resources. One thing is very clear though: everyone should take a moment to (re-) consider their lifestyle. At the current rate, it goes into the wrong direction. Totally the wrong direction. To understand the concept of Earth Overshoot Day a bit better, I spent a decent amount of hours putting together a nice infographic (what else would I have done on a rainy Belgian summer day, you know). Enjoy, and please share if you like it!



Analysis: a traveler’s footprint

If you’re only a bit like me, you love traveling. I love to explore new cities and cultures, meet new people, hear stories and challenge my view on the world. I believe traveling is one of the most effective and fun ways of self-enrichment. But what does our planet think about us flying/driving/sailing around? Now I got rid of the sand in my shoes, the backpack is stored away and I’m back at University, I thought it was the perfect time to present you the results of an experiment I undertook this summer. I wanted to find out what my travel footprint was and if I would be able to do better.

Living in the heart of Belgium, around 30 kilometers from the capital Brussels, I’ve always had the luxury of a broad range of options to go abroad. Brussels is a major international traffic hub, with a lot of international flights, high-speed train connections going in all wind directions and a lot of buses connecting cities all over Europe. Around 60 kilometers to the South, the airport of Chaleroi is the main hub for low-cost airlines — always tempting for the student with a small budget.

The idea to challenge myself to think more about the ecological impact of my journey arose from a discussion I had with one of the participants of a summer academy on sustainability I was attending in the beginning of August. Wasn’t it a bit ironic that a group of young people who are interested in sustainable living, came all the way to Istanbul, in most cases by plane? And many of us seemed to be fervent travellers. This got me thinking… what was my impact on the environment by attending this sustainability academy? And how could plan my travels in the future to limit that footprint?

So I did what you usually do when big life questions arise — I started googling. After half a day of searching the web, I ceased my attempt. Frustratingly enough, I didn’t find any satisfying calculator that could tell me how much greenhouse gases my trip had blewn into the atmosphere. The problem was this: or the available tools were too simple, or they were way too complicated. It was also difficult to track the data sources or to find out which assumptions were made to turn my input into the number the calculator spew out on the screen. My conclusion was clear: I would have to do the calculation myself.

After two days , mainly invested in digging for data on greenhouse gas emissions of different means of transport, I had a first version of the calculator ready in excel. Time for the test: how much did my trip from Belgium to Istanbul including local transport hurt the planet? The result was striking. I made an infographic to summarize the inputs and most important results.

Infographic of the travel footprint of my Istanbul trip

Infographic of the travel footprint of my Istanbul trip

It was quite shocking to learn that the transportation of this two-week trip alone took a bite of 20% out of my carbon budget. The carbon budget is what I can emit, according to the IPCC, to be on track for no more than 2°C global warming by 2100. I further found out that taking the taxi from the airport to the hotel was the most carbon intensive means of transportation, followed by the flight from Brussels to Istanbul. The difference is of course that I travelled around 4600 kilometers by plane and only 55 kilometers by taxi. The bus trips turned out to be the least carbon intensive way of moving around. But if Turkey would have had the same energy mix as France, the metro would have won that title — the carbon intensity of electricty is very low in France because of the nuclear power. During the research I made a graph of the carbon intensity per kilometer for some of the means of transport, which can serve has a first guiding tool in choosing your way of traveling.

Chart of greenhouse gas emissions of typical means of travel (based on data from DEFRA and LIPASTO)

Chart of greenhouse gas emissions of typical means of travel (based on data from DEFRA and LIPASTO)

The biggest lessons from playing around with the data were:

  • taking a taxi as a single passenger, or a car with only one person are most carbon intensive
  • taking a plane is devastating, since it is nearly as carbon intensive as being a single person in a car but you travel much longer distances
  • taking an electric train or metro is often a good idea, unless you are living in a country with a mainly coal-fired power generation (such as Poland)
  • taking a coach bus has a very low footprint

With this in mind, I started planning my next trip. I now wanted to travel with a minimal ecological footprint, but still fulfill the two remaining items on my bucket list for the summer of 2015: attending the Climate Launchpad competition in Amsterdam and doing a surf camp in France or Spain. To make things even more complicated, I had to remember my budget constraints. I used the Travel Carbon Footprint calculator to estimate the footprint of different ways to realize my plans. It was pretty clear that I had to avoid taking the plane. I finally choose to do everything by long-distance bus, because it had the lowest footprint, it was enormously cheap (especially because I was arranging everything last minute) and I didn’t have to worry about luggage restrictions. The final footprint is around 2,20% of my yearly carbon budget. If I would have chosen a less time-consuming alternative, e.g. taking the train to Amsterdam and a plane to the South of France, it was at least five times more carbon intensive. So for me it was worth the long hours on a bus.

If you are curious about your own travel footprint of last summer, I have good news for you. You can calculate your own footprint now as well, I made the first version of the calculator available for you on the Shift website! Be sure to first read the manual so you know what input is expected from you and what the results really mean. I plan to further upgrade the calculator in the future and keep the data up to date. You can always leave a suggestion for new functionalities as well, or leave a question.

And to assure you: I had an awesome time both in Amsterdam and during my surf trip in the South-West of France. For me, it was the proof that travelling and exploring can be cheap and good for the environment without compromising too much. I hope the calculator will help you choosing your transportation means during the planning of future trips! And don’t forget: transport often is a huge part of your travel footprint, but not the only one. Eat, shop, sleep and enjoy your destination without leaving traces…only good memories.