Some of the most used abbreviations:

CO2 – Carbon dioxide – the most important greenhouse gas
CO2-e – Carbon Dioxide Equivalent
KT/CT– Criteria 
CSO – Chief Sustainability Officer

CSRD – Corporate Sustainability Reporting Directive
CSSD – Corporate Sustainability Due Diligence Directive
DEFRA – Emission Conversion Factors
ESAP – European Sustainability Data Base
ESG – E – Environment, S – Social, G – Governance
ESRS – European Sustainability Reporting Standards
GHG – Greenhouse Gas Protocol and Reporting Standard (www.ghgprotocol.org)
ISO 14064 – International Standard for Corporate Emissions Reporting
NFRD – Non-Financial Reporting Directive
PIS – Business Information System
SVK – Quality Management System
ZERO WASTE – Protecting all natural resources through responsible production, consumption, reuse and
use of products, plastic and matter, without incinerating matter or generating emissions that could impact
the soil, water or air and thus harm ecosystems or humans.

More abbreviations.