Economic policy instruments play a crucial role in reducing greenhouse gas (GHG) emissions as part of broader climate change mitigation and adaptation strategies. These instruments work by influencing market behavior, internalizing the external costs of emissions, and encouraging both producers and consumers to adopt cleaner technologies and practices. The central idea is to align economic incentives with environmental goals to reduce GHG emissions in a cost-effective and efficient manner. Economic instruments can be broadly classified into market-based instruments (such as carbon pricing and emissions trading), subsidies and incentives, and regulatory mechanisms with economic implications. One of the most widely recognized economic instruments is carbon pricing, which includes carbon taxes and emissions trading systems (ETS). Carbon taxes place a direct fee on the carbon content of fossil fuels or on emissions of GHGs. By making it more expensive to emit carbon, such taxes provide an economic signal to businesses and individuals to reduce emissions through energy efficiency, fuel switching, or technological innovation. For example, Sweden implemented a carbon tax in the early 1990s, which has significantly contributed to the country’s reduced emissions while allowing economic growth to continue. Emissions trading systems, also known as cap-and-trade schemes, set a total emissions cap and allocate or sell permits to emit GHGs. These permits can be traded in the market, allowing companies that can reduce emissions at lower costs to sell their excess allowances to those for whom reduction is more expensive. The European Union Emissions Trading System (EU ETS), the largest of its kind, has been successful in creating a carbon market that incentivizes reductions and promotes investment in low-carbon technologies. Subsidies and incentives also serve as powerful economic tools for reducing GHG emissions. These include tax credits, grants, and feed-in tariffs for renewable energy, energy efficiency improvements, electric vehicles, and low-emission building materials. For instance, the United States’ Production Tax Credit (PTC) and Investment Tax Credit (ITC) have spurred the growth of wind and solar energy sectors. Similarly, India has used subsidies and fiscal incentives to promote solar energy under the National Solar Mission, facilitating both mitigation and energy access objectives. Removing subsidies for fossil fuels is another crucial economic policy measure. Globally, fossil fuel subsidies often distort markets and encourage overconsumption of carbon-intensive energy sources. Reforming these subsidies and redirecting the savings toward clean energy and social protection programs can significantly aid climate change mitigation while promoting social equity. According to the International Monetary Fund (IMF), eliminating fossil fuel subsidies could reduce global carbon emissions by over 20%, showing the massive potential of this policy action. Public procurement policies are increasingly used to drive low-carbon innovation and consumption. Governments can leverage their purchasing power to buy sustainable products, vehicles, and services that meet environmental standards. Green public procurement not only reduces GHG emissions directly but also stimulates the