Live estimate

Hong Kong CO₂ Emissions

Hong Kong emitted 33.3 million tonnes of CO₂ from fossil fuels and industry in 2024: 0.1% of the world total, the 68th most of 213 countries. That is 4.5 tonnes per person, 5% below the world average of 4.7 t.

Estimated CO₂ emitted by Hong Kong in 2026 so far

0 tonnes since you opened this page · 1 t every second

CO₂ in 2024

33.3 Mt

33.3 million tonnes

World rank

#68

of 213 countries

Share of world

0.1%

world total 38.6 Gt

Per person

4.5 t

world average 4.7 t

Change vs 2023

+0.9%

2023: 33.0 Mt

Historical share

0.1%

#72 since 1750

Trend since 2000

Emissions rose 0.9% in 2024 compared with 2023. Compared with 2005, emissions are down 23%. Emissions peaked in 2014 at 45.5 million tonnes and are now 27% lower.

204060

Million tonnes of CO₂ a year

Show yearly data (million tonnes)

Year	CO₂ (Mt)
2024	33.3
2023	33.0
2022	30.8
2021	33.6
2020	33.5
2019	41.9
2018	42.6
2017	42.4
2016	43.4
2015	42.4
2014	45.5
2013	44.3
2012	42.7
2011	43.1
2010	40.1
2009	41.6
2008	42.8
2007	43.6
2006	41.9
2005	43.3
2004	41.2
2003	42.7
2002	39.0
2001	37.3
2000	39.8

Where it comes from

Coal is the largest source of Hong Kong’s CO₂, at 34%.

Coal34%11.3 Mt
Oil31%10.4 Mt
Gas33%11.0 Mt
Cement2%0.6 Mt

Hong Kong in context

0.09% vs 0.09%

Share of people vs share of CO₂

Hong Kong is home to 0.09% of the world’s population and produces 0.09% of its fossil CO₂, so its share of emissions is smaller than its share of people.

+23%

Change since 1990

Emissions in 2024 were 23% higher than in 1990, the baseline year of the Kyoto Protocol (27.1 Mt then). World emissions rose 70% over the same period.

144 Mt

Consumption-based CO₂ (2023)

Counting the CO₂ in goods it imports and exports, Hong Kong was responsible for 144.2 Mt in 2023, 337% more than the 33.0 Mt produced at home: it is a net importer of emissions.

122 g

CO₂ per kWh of energy

Each kilowatt-hour of primary energy used in Hong Kong came with about 122 g of CO₂ in 2024 (world: 218 g), pointing to a much cleaner energy mix than the world average.

0.09 kg

CO₂ per dollar of GDP

Its economy emitted 0.09 kg of CO₂ for each dollar of output in 2022 (adjusted for purchasing power), 70% below the world average of 0.29 kg.

Figures from Our World in Data, based on the Global Carbon Project; latest year available for each measure.

How Hong Kong compares

Rank	Country	CO₂ 2024	Share	Per person
66	Portugal	35.5 Mt	0.1%	3.4 t
67	Trinidad and Tobago	34.6 Mt	0.1%	22.9 t
68	Hong Kong	33.3 Mt	0.1%	4.5 t
69	Ireland	33.3 Mt	0.1%	6.3 t
70	Dominican Republic	33.1 Mt	0.1%	2.9 t

See all 213 countries → · Global live counter →

Questions and answers

How much CO₂ does Hong Kong emit?

Hong Kong emitted 33.3 million tonnes of CO₂ from fossil fuels and industry in 2024, 0.1% of global emissions. That is about 1 tonnes every second.

What are Hong Kong’s CO₂ emissions per person?

Hong Kong emits 4.5 tonnes per person, 5% below the world average of 4.7 t. Per-person emissions divide the national total by population (7.4 million people in 2024).

Are Hong Kong’s CO₂ emissions rising or falling?

Emissions rose 0.9% in 2024 compared with 2023. Compared with 2005, emissions are down 23%. Emissions peaked in 2014 at 45.5 million tonnes and are now 27% lower.

What is the main source of CO₂ emissions in Hong Kong?

Coal is the largest source, at 34% of Hong Kong’s fossil and industry CO₂ in 2024 (11.3 million tonnes).

What are Hong Kong’s consumption-based CO₂ emissions?

About 144.2 million tonnes in 2023, 337% more than the 33.0 million tonnes emitted within its borders, because it imports more carbon-intensive goods than it exports. Consumption-based accounting adds the emissions embodied in imports and subtracts those in exports.

How much has Hong Kong contributed to historical CO₂ emissions?

Since 1750, Hong Kong has emitted about 2 billion tonnes of fossil CO₂, 0.1% of the world total, the 72nd largest historical contribution.