La huella de carbono personal es una herramienta, que permite al individuo evaluar sus emisiones de gases de efecto invernadero. Nacida bajo el liderazgo de Jean-Marc Jancovici, ha sido puesta en línea en 2007 por ADEME") y el Clima Futures Association. Permite que cualquier persona pueda calcular con precisión las emisiones de gases de efecto invernadero inducidas por sus acciones, y por lo tanto su participación en el calentamiento global en todos los ámbitos de su vida.
La calculadora personal de la huella de carbono tiene todo en cuenta, "desde las compras de calzado a las vacaciones esquiando, pasando por la calefacción y la carne que se consume.[19].
Description
With, typically, your annual gas bill, electricity bill, your (approximate) plane and car mileage (the website has a list of city-to-city distances from around the world), and with your consumption of food, products and services, the site allows you to know all the details of your own greenhouse gas emissions (including the methane emitted by raising the animals that are consumed).
The site first allows, if desired, to create an alias to protect the information, which is useful if you want to correct some of the emissions later to, for example, compare the effectiveness of the planned efforts.
Questionnaire
The questionnaire is divided into 4 parts, which for an average citizen, each corresponds to 1/4 of greenhouse gas emissions.
• - Accommodation: Avoid excessive use of electrical energy.
• - Transportation: Moderate the use of transportation.
• - Diet: Try to eat more fruit and avoid meat as much as possible.
• - Consumption: with the consumption of electrical appliances, use the computer when necessary.
Other initiatives in the world
There are other similar initiatives in the world, such as in the United Kingdom with the site "Actonco2"[20] or the United States with the page "Personal Emissions Calculator".[21].
• - The US site 'Personal Emissions Calculator*[22] only calculates CO₂ emissions (as stated in its introduction, calculating "greenhouse gas emissions") from just home and car use, but does not take into account emissions from food (including meat), nor those from the purchase of technology equipment (computers, televisions, stereos, cameras, laptops, etc...), or those from traveling by car. airplane... Thus, what claims to be an individual emissions calculator does not take into account more than half or less of the actual emissions of a given individual... (Since emissions caused by food or supplies in everyday life already represent half of all emissions).*.
• - The English site "Actonco2",[20] calculates the housing and transportation part in a little more detail, and vaguely calculates the CO₂ emissions from air travel (but for the plane it is necessary to take into account other gases) and does not calculate the essential part of food, nor general consumption (supplies, furniture, clothing, recreational activities) outside the ordinary ones. Thus, the CO₂ calculator probably takes into account a little more than half of the actual emissions of a given individual...
The personal carbon footprint allows all aspects of an individual's life to be taken into account, and in detail, not only to calculate CO₂ emissions, but of all greenhouse gases, and this with a deviation calculated for each part. Which allows the person to have a global vision of their participation in global warming.[23][24].
In Argentina, work has been done on the calculation and registration of the carbon footprint in different attempts. The advances are timid but are well oriented, some of them available on the website of the Ministry of Environment and Sustainable Development "Ministerio de Ambiente y Desarrollo Sostenible (Argentina)"), such as the National Inventory of Greenhouse Gases.[25].
Problems, perspectives
This type of tool is still based on average extrapolations and will surely be improved in the future.
For example, in the footprint of Internet use: The carbon footprint on the Internet of a search through a search engine like Google varies today from 2 to 7 g (calculated by Alex Wissner-Gross of Harvard University, physicist, author of the project *« CO2stat,[26]"*which calculates the impact of a website according to the power of its server&action=edit&redlink=1 "Server (Internet) (not yet redacted)") and the number of visitors, offering its clients the compensatory purchase equivalent to the energy consumed by the site (a source of clean and safe electrical energy; solar or wind).
For a Google search or a page visit, Internet consumption actually varies greatly depending on various factors (including the presence of video, animation or multiplayer game; the personal computer consumes the most, followed by data exchange (depending on distance, and the support (fiber optic or not), the operation of servers, and data centers).
The computer thus becomes a source of greenhouse gases. This however has to be weighed against the positive impact of the network in terms of transmission and in avoiding emissions of other greenhouse gases thanks to teleworking or collaborative work.