Definition 

A high carbon intensity portfolio refers to a portfolio of assets that have a relatively high carbon footprint or are associated with high greenhouse gas emissions. These assets may include companies in sectors such as energy, transportation, and manufacturing, which are known to have a significant impact on the environment and contribute to climate change. The carbon intensity of these assets is typically measured by their carbon emissions per unit of output or revenue. A high carbon intensity portfolio may be contrasted with a low carbon intensity portfolio.