Class: 3

Participants: 11 (including accompanying teachers)

Destination: Sofia, Bulgaria

Departure date: 2022-11-06
Return date: 2022-11-12 (total duration in days: 7)

Accompanying teacher: Maria Eccheli

In total, the group covered:
- 0 km by bus
- 0 km by train
- 2658 km by plane
- 0 km by bike and/or on foot

In total, the group spent:
- 0 nights in tent
- 0 nights in hotel
- 0 nights in hostel
- 6 nights in private accommodation

The whole group took 22 showers in total

Every day each participant consumed these foods and drinks on average: bread for breakfast, jam for breakfast, yogurt for breakfast, bread for packed lunch, vegetables for packed lunch, first course with meat/fish for lunch, vegetarian first course/soup for lunch, bread for lunch, vegetables as side dish for lunch, bread as afternoon snack, jam as afternoon snack, cake/ice cream as afternoon snack, bread for dinner, main course with meat/fish for dinner, vegetables as side dish for dinner, dessert/ice cream at dinner, bread for packed dinner, vegetables for packed dinner, and bottled water.


FOOTPRINT CALCULATION

Sources for calculating CO2 emissions:
- National Atmospheric Emissions Inventory (United Kingdom)
- Department for Environment, Food and Rural Affairs (United Kingdom)
- "The eco-efficiency of tourism" (article)
- Food-related CO2 meter, developed by WWF (http://www.improntawwf.it/carrello/)

Source for calculating the water footprint of food:
- Publication "Water Economy" by Barilla Center for Food and Nutrition (https://www.barillacfn.com/m/publications/pp-watereconomy-it.pdf)

Sources for calculating the needed amount of trees for absorpiton:
- degree thesis on the study of the environmental impact of the university complex Legnaro PD-Polo Agripolis edited by Elisa Negrini, Supervisor prof. Davide Pettenella, University of Padova
- Provincial energy plan of the Provincia Autonoma di Trento, 2013-2020
- Servizio Foreste Provincia Autonoma di Trento, referente dott. Marcello Scutari
- AA.VV., IPCC Guidelines for National Greenhouse Gas Inventories Agriculture, Forestry and Other Land Use
- web site treedom.net, with an environmental calculator edited by IPCC (Intergovernmental Panel On Climate Change)

Total CO2 kg emitted for transfers: 5125 (80%)
Total CO2 kg emitted for accommodation: 137 (2%)
Total CO2 kg emitted for food: 1150 (18%)
Total for the whole group of 11 people: about6413 CO2 kilograms (rounded to 6 tonnes)

Total water consumption from food consumed and showers taken (by the whole group): about 560901 litres of water, equivalent to 3739 bath tubs, that put in a row would cover a distance of 6 km!
This amount of water could be used to water about 2244square meters of vegetable garden for a whole year (250 l/sqm/year), that in our area could give nourishment to 22 families (100sqm/family). Alternatively, this amount of water could quench a dairy cow's thirst for 2805 days (about 200 l/day).

How can we balance these emissions?
Estimating that it takes about 100 trees to absorb one tonne of CO2 in a year, the emissions from the class trip 3 to Sofia, Bulgaria can be balanced by 641 trees.

These trees correspond to approximately 5769square metres of forest (corresponding to 0.69 football fields) which can be enhanced as follows:
- you can support the Otonga project in Ecuador with a donation of ?865.35 (?0.15 each sqm) to buy a corresponding area of forest;
- you can set aside time for an environmental protection activity in your school, to be agreed with your class teachers;
- you can carry out an activity, planned with your family or firends, on environmental sustainability. Remember to communicate this to your class teachers.


This calculator was created by Alessandro Vallin (alessandro.vallin@scuole.provincia.tn.it - Rovereto)