Offset the emission of one tonne of carbon dioxide (CO2) using reduction certificates issued by the United Nations. One Certified Emission Reduction (CER) represents one tonne of anthropogenic (ie, man-made) CO2 or an equivalent amount of other greenhouse gases. Its emission was avoided in a project under the umbrella of the Clean Development Mechanism (CDM). Such projects are supervised by the CDM Executive Board, an intergovernmental body of the United Nations.
The CDM leverages the transfer of capital and technology to reduce carbon emissions mostly in developing countries. Projects come in different shapes and sizes, but they all result in emission reductions verified and certified by the UN with the CER label. Some emission reductions achieved under the CDM result from the large-scale installations of renewable energy sources in South East Asia; others, from the micro-scale distribution of domestic stoves to reduce the inefficient practice of cooking over the open fire in sub-saharan Africa.
By ordering us to offset your carbon emissions using CER, you not help finance projects to reduce greenhouse gas emissions in projects around the world. You also promote the transfer of technology to support the livelihood of people in poorer countries and to create a fair global society.