  Understanding the environmental impact of professional activities is becoming
paramount in current times, especially within sectors that historically have
had significant resource utilisation, such as High Energy Physics (HEP) and
related fields. The young High Energy Physicists (yHEP) association launched
the Know your footprint (Kyf) campaign to evaluate the CO$_\text{2}$-equivalent
emissions generated by HEP-related research. This study delves into the carbon
footprints associated with four distinct categories: Experiments, tied to
extensive collaborations with substantial infrastructure; Institutional,
representing the resource consumption of research institutes and universities;
Computing, focusing on simulations and data analysis; and Travel, covering
professional trips such as to conferences, meetings, and workshops. The
findings in this assessment are integrated into a tool for self-evaluation, the
Know-your-footprint (Kyf) calculator, which allows colleagues to assess their
personal and professional footprint, and optionally share their data with the
yHEP association. The aim of the Kyf campaign is to heighten awareness, foster
sustainability, and inspire the community to adopt more
environmentally-responsible research methodologies.
