What does a carbon offset represent?

A carbon offset represents a unit of carbon dioxide equivalent, which is a way to measure and account for the impact of greenhouse gas emissions on climate change. By purchasing carbon offsets, individuals or organizations can support projects that reduce emissions elsewhere, such as reforestation, renewable energy development, or energy efficiency improvements. This helps to balance out their own carbon footprint, contributing to overall reduction in greenhouse gas concentrations in the atmosphere.

The focus on carbon dioxide equivalent is crucial as it encompasses not just carbon dioxide, but all greenhouse gases and their relative impact on global warming. This unit allows for a standardized way to compare various gases and their emissions. Understanding the concept of carbon offsets is fundamental for promoting sustainability and for achieving various environmental goals outlined in energy and atmosphere initiatives.