different greenhouse gases by country

Different Greenhouse Gas Emissions by Country

Jane Marsh - August 29, 2022

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In the environmentally enlightened era, countries are comparing their carbon footprints to promote global environmental sustainability. They measure their emissions by calculating the number of greenhouse gases released by the transportation, manufacturing, residential, agricultural and commercial sectors. Then they evaluate the relation between emission and a country’s population.

After calculating different greenhouse gas emissions by country, individuals can identify the most eco-friendly places to live. Before exploring the most sustainable countries, we must assess the highest pollution-producing industries. Examining the industries’ impacts can help regions establish eco-conscious regulations, improving conservation efforts.

Where Do Greenhouse Gases Come From?

Various sectors contribute to a country’s carbon footprint size. Transportation is one of the largest emission-producing industries around the world. Vehicles release nearly 7.3 billion greenhouse gas emissions into the atmosphere annually.

About 41% of the pollution comes from personal vehicles, creating regulation challenges. The electricity sector also contributes to high global emission rates. Most of the world’s electricity comes from coal and gas.

During combustion, both energy sources release carbon dioxide into the atmosphere. When countries depend on fossil-fuel-reliant electricity sources, they obtain larger carbon footprints. Another contributing factor to a nation’s sustainability levels is the residential sector.

A home’s heating, ventilation and air conditioning (HVAC) systems and lights run on emission-producing energy sources. In the U.S. alone, residential systems contribute to 13% of greenhouse gas emissions. The agricultural industry is the final major polluter in countries around the globe.

Animal agriculture practices release methane emissions into the environment. The gas is significantly more potent than carbon dioxide, efficiently increasing Earth’s temperature. It also makes up nearly 10% of global greenhouse gas emissions, impacting a nation’s carbon footprint size.


China has the largest carbon footprint in the world. It releases nearly 10.06 billion tons of carbon emissions annually. Most of the air pollution derives from the energy sector, which relies on coal to produce 58% of China’s electricity supply.

The country also consumes a high quantity of oil, supporting its transportation sector. Industrial manufacturers produce a significant amount of goods in China, adding to its carbon footprint. Chinese environmentalists plan on shrinking the country’s footprint by adopting sustainable power sources like nuclear and renewable energy.


The U.S. has the second-largest carbon footprint in the world. America releases nearly 6.6 billion tons of emissions into the atmosphere annually. Most of the country’s emissions derive from carbon dioxide.

Methane and nitrous oxide make up the remaining parts of America’s footprint. American environmentalists are improving the nation’s sustainability by implementing renewables and natural gas into the energy sector. The Environmental Protection Agency (EPA) also established strict regulations for industrial manufacturers and energy producers, working to reduce atmospheric degradation.


India produces the third-highest count of greenhouse emissions in the world. The country’s reliance on coal for energy increases its carbon footprint. Unsustainable agriculture production practices also have adverse ecological effects, producing greenhouse gases.

The overproduction of rice and beef contributes to higher-than-average farming emissions in India. The enhanced greenhouse effect detrimental impacts the country’s ecosystem, melting Himalayan glaciers and increasing monsoons. Indian government officials plan to increase sustainability by accessing more energy from low emission sources and abiding by the Paris Agreement’s regulations.


Russia is the fourth highest greenhouse gas emitting country in the world. The country produces just over 1.5 billion tons of emissions annually, and over half derives from the energy sector. Russian energy producers develop the country’s power supply using fossil fuels, releasing air pollution during combustion.

Another contributing sector to Russia’s carbon footprint is transportation. The industry makes up nearly 13% of the nation’s emissions because it relies on oil and gas. Russia can effectively shrink its footprint by adopting renewable energy sources, decreasing its reliance on fossil fuels.

The Most Sustainable Countries

The top four pollution-producing countries can assess the most sustainable nations, developing emission reduction tactics. Sweden is the most eco-friendly country in the world, with the smallest carbon footprint. It sources nearly half of its energy supply from renewable sources, minimizing power-related emissions.

The nation also minimizes greenhouse gas production by adopting electric transportation systems. Swedish development planners create smart roads for more sustainable travel routes, additionally improving the sector’s eco-friendliness. Switzerland also has a small carbon footprint, making it the second most eco-conscious country on the planet.

The country decreases surface-level and atmospheric pollution by converting waste into energy. It reduces nearly 100,000 tons of waste into power annually, lessening its reliance on fossil fuels. Norway is the third most sustainable nation globally, containing a small footprint.

The nation has an efficient recycling system, producing a circular economy. It also uses hydroelectricity instead of fossil fuels, meeting consumers’ energy demands. After assessing the lowest greenhouse gas emissions by country, individuals can identify emission-reduction practices.

Reducing Greenhouse Gas Emissions by Country

China, America, India and Germany can shrink their carbon footprints to enhance global environmental sustainability. They may adopt renewable energy sources, reduce landfill pollution and improve recycling systems, minimizing greenhouse gas emissions. Over time, sustainability-enhancing measures can improve atmospheric conditions and the global ecosystem.

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About the author

Jane Marsh

Starting from an early age, Jane Marsh loved all animals and became a budding environmentalist. Now, Jane works as the Editor-in-Chief of Environment.co where she covers topics related to climate policy, renewable energy, the food industry, and more.