The Massachusetts Senate will debate comprehensive climate and plastics legislation aimed at reducing greenhouse gas emissions. In 2021, the Boston community emitted 5.4 million metric tons of greenhouse gasses (GHGs) from energy use in buildings and transportation.The carbon crediting mechanism under the Paris Agreement allows countries to raise climate ambition and implement national action plans more affordably. At least 16 states and Puerto Rico have enacted legislation establishing greenhouse gas (GHG) emissions reduction requirements. Instead, the Paris Agreement is based on differing Nationally Determined Contributions (NDCs). Greenhouse Gas Inventory – A list of emission sources and their annual emissions quantified using standardized methods. The Regional Greenhouse Gas Initiative (RGGI) is the first U.S. cap-and-trade program to reduce carbon dioxide (CO2) emissions from the power sector.