There are a wide range of strategies that have been developed in order to mitigate emissions and to promote certain sustainable objectives such as energy security, pollution reduction, and sustainable economic development. Energy Star, created by the EPA and Department of Energy in 1992, has become a standard for energy efficient consumer products that has been adopted by countries around the world. Other government programs that have been enacted often target heavy-emitting industries such as agriculture , forestry, and waste management. The United States has also developed polices and measures on state- and regional-levels and also include private sector initiatives to encourage the reduction of emissions.
The greenhouse gas emissions increase in 2018 was one of the largest gains in the last two decades. However, the U.S. experienced a decrease in emissions in 2019, following a downward trend evident from 2015 to 2017. The decline in this year was largely due a drop in coal consumption. One of the biggest contributors of GHG emissions arises from major energy providers. A major shift towards natural gas and renewable sources has contributed to the decrease in emissions. However, the increased extraction and consumption of natural gas has also increased the sector's emissions. Historically, GHG emissions tended to reflect economic fluctuations, as seen in the growth of the power, transportation, construction, and industry sectors in the United States.