50. Suriname
> CO2 emissions, metric tons per capita, 2019: 4.54
> CO2 emissions, metric tons per capita, 2010: 3.27 — #71 lowest of 147 countries
> CO2 emissions per GDP, 2019: 0.30 — #33 highest of 148 countries
> Total GHG emissions, million metric tons, 2019: No data
The South American country’s intended nationally determined contribution to the 2015 Paris Agreement committed Suriname to improve forest management and augment its carbon-sink potential. There are no greenhouse-gas emissions targets for 2030, however, for this nation of about 600,000 people.
49. United Kingdom
> CO2 emissions, metric tons per capita, 2020: 4.56
> CO2 emissions, metric tons per capita, 2010: 7.59 — #38 highest of 147 countries
> CO2 emissions per GDP, 2020: 0.12 — #40 lowest of 148 countries
> Total GHG emissions, million metric tons, 2020: 317.52 — #16 highest of 87 countries
The nation of more than 67 million people aims for a total decarbonization goal by 2050 and intends to slash greenhouse-gas emissions by 68% by 2030 from 1990 levels. Total CO2 emissions have plunged more than 44% since 1990.
48. Italy
> CO2 emissions, metric tons per capita, 2020: 4.67
> CO2 emissions, metric tons per capita, 2010: 6.55 — #43 highest of 147 countries
> CO2 emissions per GDP, 2020: 0.13 — #51 lowest of 148 countries
> Total GHG emissions, million metric tons, 2020: 290.53 — #18 highest of 87 countries
Italy, which produced the 18th-highest level of total greenhouse-gas emissions in 2020, has an aggressive plan to decarbonize. The nation of 60 million people aims to achieve 30% in renewables in total energy consumption by 2030 and 55% in electricity generation.
47. Hong Kong
> CO2 emissions, metric tons per capita, 2020: 4.70
> CO2 emissions, metric tons per capita, 2010: 5.90 — #50 highest of 147 countries
> CO2 emissions per GDP, 2020: 0.09 — #17 lowest of 148 countries
> Total GHG emissions, million metric tons, 2019: No data
This so-called Special Administrative Region of China derives all its electricity from fossil fuels. Air pollution from rapid urbanization in Hong Kong, with a population of 7.5 million, is a major issue.
46. Slovak Republic
> CO2 emissions, metric tons per capita, 2020: 4.85
> CO2 emissions, metric tons per capita, 2010: 6.37 — #44 highest of 147 countries
> CO2 emissions per GDP, 2020: 0.15 — #63 lowest of 148 countries
> Total GHG emissions, million metric tons, 2019: No data
This Central European nation’s energy policy aims to make deployment of energy more efficient, reducing energy intensity and expanding its nuclear power sector. Energy utilization in the nation of 5.5 million can be unpredictable and government tariffs on energy use makes it expensive.