Since the Kyoto protocol was ratified in 1997, it became the strongest connection among the world's population in the effort for mitigation the climate change. The main reason for climate change is the global warming. Global warming is a result from the higher amount of greenhouse gasses in the atmosphere and especially of CO2. The higher concentration of those greenhouse gasses are due to human activities and industrialization of the planet.
The Kyoto protocol presents 3 flexible mechanisms that support the international effort for emission reduction. These are Joint Implementation (JI), Clean Development Mechanism (CDM) and Emission Treading Scheme (ETS). At the present moment JI is the only applicable mechanism in Bulgaria.
JI is a unique mechanism that helps the countries, which are members of Annex I to achieve their targets, towards the Kyoto protocol.

CoGen Engineering is among the first companies in Bulgaria to provide JI service.
This service includes:

• Consultancy of the type, the structure, and the possibilities for realization of certain JI projects on the territory of Bulgaria (the Annex 1 Countries, as well as the territory of countries from the Balkan Peninsula that participate in the Clean Development Mechanism (CDM);
  
• Development of complete documentation that is necessary for participation in a JI tender for Emission reduction sale under the programs of the different Governments, which Bulgaria has signed Memorandums of Understanding with;
  
• Coordination with the Bulgarian Government for performance of all necessary law procedures and projects approval;
  
• Coordination with the Authorities and Organizations, that purchases Emission Reduction Units. Up to now these are the Governments of Austria, Denmark, Japan, Netherlands, Sweden, and Switzerland;
  
• Management and support of the project's Validation process;
  
• Analysis and implementation of complex monitoring systems used for precise measurement of the released CO2 emissions by installations, which are involved in JI projects, as well as for installations, which fall under the EU ETS that will starts in 2008.
  
• Preparation of yearly reports for Verification and Certification of the reduced amount GHG emissions, and further support in face of the Verification organizations;
  
• Achieve of good price and conditions for the companies that are involved in the JI, and the EU ETS.