The ongoing problem is the increase of greenhouse gas emissions. According to the United States Environmental Protection Agency (EPA), heat, transportation and the burning of fossil fuels for power are the primary causes of greenhouse gas emissions from human activities in the US. The 4 main greenhouse gases include carbon dioxide, methane, nitrous oxide, and fluorinated gases. Human activities have been responsible for nearly all of the GHG emissions in the atmosphere over the last 150 years (EPA 2020). GHG emissions raise the temperature of the planet constantly, impacting the environment negatively. It directly affects the climate through irregular weather changes, forest fires and the melting of glaciers (Surampalli et al, 2013). These impacts on the environment also have an effect on human wellbeing, natural and agricultural environments, marine habitats and communities.
