Energy tips and challenges to go one step further

• Whenever possible, use a bicycle (even an electric one) or walk to the office. These modes of transportation reduce_CO2 emissions by a factor of 7 to 10 per km traveled compared to using a car. In the case of conventional buses, the reduction is about a factor of 3*.
• In the case of short trips within the same site, it is also advisable to use alternative modes of transport (walking, cycling) whenever possible because fuel consumption per km (and therefore CO₂ emissions) increases slightly during the first few minutes of car use. In addition, during these first minutes of use, the catalytic converter which reduces many pollutants is ineffective because it is cold. The majority of the pollutants produced by the vehicle are then directly released into the atmosphere. Finally, during this period when the engine is cold (as well as its oil), it is less well lubricated and wears out more.

Visit the my.mobility intranet for more information on the Sart Tilman's or the City's pedestrian routes or "bike". You will also find other useful information on these alternative modes of transport, such as parking facilities for your bicycle.

• When you wash your hands, use cold water. Generally, hot water will not be used until you are finished washing your hands.
• Report a water leak (dripping faucet, leaking toilet...) by making a request to ARI by selecting "Plumbing".

• Replace a dish without meat/fish (100 g). This will reduce your CO₂ emissions by about 3 kg per day*
• Use a water bottle, a solid lunch box, a lunch box or a beeswax packaging, which reduce waste (aluminium, plastic bag...)
• Sort waste using the garbage cans in the offices and buildings (PMC / cardboard / residual). Please note that the institution has set up several collection bins for used batteries and that WEEE (Waste Electrical and Electronic Equipment) is also collected.
• Bottled water generates 300 to 3000 times more CO₂ emissions than tap water. Water fountains are and will be installed near the majority of cafeterias and amphitheaters.

Internet access

Internet browsing / video conferencing

• The tabs of your browser in the background sometimes consume many resources (especially social networks). It is therefore advisable to close them if they are no longer in use.
• Streaming (reading an audio or video stream online) is one of the main consumption vectors of the digital sector. It represents more than 60% of data traffic on the Internet and about 20% of greenhouse gas emissions linked to digital uses, i.e. about 1% of global emissions*. It is therefore advisable :
  
  • Adapt the resolution of the video to the screen and to the use that is made of the video (and set these parameters by default if it is possible):
    
    • No need to play the video in high definition on a smartphone, a resolution of 240p is enough.
    • On a computer screen, a resolution of 720p is more than enough and can be reduced to 480p for a training video.
    • Prefer web radios to "video" playlists to listen to music.
  • Mute the cameras (or adjust the video quality) during a video conference presentation if the video conference software allows it.
  • Block the automatic playback of videos on different platforms and social networks.
• The extension Carbonalyser (available for Chrome, Firefox and Android) allows you to estimate your environmental impact related to your Internet browsing in order to become aware of it;
• Some search engines reverse the contrast (white/grey writing on a black background) in order to save energy. With the advent of LCD screens compared to the old CRT screens, this type of search engine does not bring any notable gain (< 2%) on the screen's power consumption**. Note that there are other search engines that donate part of their advertising revenues to social or environmental purposes (Lilo or Ecosia).
• Install a browser extension to block ads in order to reduce visual pollution and the "weight" of certain pages (example µblock).
• For the most advanced users, it is possible to modify a file present on your operating system (the host file) in order to lighten the web pages and reduce your internet traffic.

e-mail

According toADEME, 25% of printouts are thrown away after printing and 16% of printouts are never read. The production of one kilogram of paper (i.e. 200 sheets of standard paper weight) consumes about 60 to 100 liters of water and 4 to 5 kWh of electricity*, so it is important to be concerned and to limit printing.

• Only print if it is really useful. An alternative is to generate a PDF using PDF Creator
• Enable the default "duplex" option on printers
• Print in "draft" mode. Ink savings vary depending on the printer model.
• Consider printing 2 pages per sheet if reading is comfortable
• Buy recycled paper
• Reuse single-sided printed sheets as scrap paper
• Optimize the layout of documents and/or remove unnecessary elements (email signature / web page advertising...) before printing
• Recycle paper in the institution's dedicated paper garbage cans as 90% of the recycled paper will be reused for paper production.
• Unplug your printer, especially if it has the WiFi option activated (see electricity point)