The Delhi Metro Rail Corporation (DMRC) sold 3.55 million carbon credits between 2012 and 2018, earning 19.5 crore, a DMRC spokesperson said.
In 2007, Delhi Metro became the first metro/railway project to be registered under the Clean Development Mechanism (CDM) by the United Nations. The CDM is a project-based greenhouse gas offset mechanism under the Kyoto Protocol that allows the public and the private sectors in high-income countries to purchase carbon credits from greenhouse gas emission-reducing projects in low- or middle-income nations, as part of their efforts to meet international emission targets under the Kyoto Protocol.
The first CDM project of Delhi Metro was based on regenerative-braking technology, and the carbon credits generated from the project till 2012 were sold for Rs 9.55 crore.
