View source for Environment of Hong Kong

{{Short description|Overview of the environment in Hong Kong}}
{{Use dmy dates|date=May 2023}}
{{Use Hong Kong English|date=December 2018}}

{{Lead too short|date=October 2025}}

The '''environment of Hong Kong''' features a subtropical climate with temperate conditions for about half of the year as well as a monsoon season. Despite being very densely populated, Hong Kong has a high level of biodiversity. Some threats to the environment include [[climate change]], [[Sea level rise|rising sea levels]], pollution, and land development.

==Climate==
Hong Kong has a [[Subtropics|subtropical climate]] with temperate conditions for about six months of the year. The monsoon season lasts from April to September with July to September being the most likely months for tropical cyclones to occur. During the hot, humid summers, the average daily maximum temperatures range from 26&nbsp;°C at night to 31&nbsp;°C during the day, with late May to mid-September seeing the highest temperatures. Hong Kong receives between 1,400 and 3,000 millimetres of rain per year and 80% of that occurs from May to September. Of these, June and August are the wettest months, with rain falling on almost four out of seven days. The winters are dry and temperate. December and January, are the driest months, with an average of only one rainy day per week.<ref>{{Cite web |title=Climate of Hong Kong |url=https://www.hko.gov.hk/en/cis/climahk.htm |url-status=live |archive-url=https://web.archive.org/web/20250927050211/https://www.hko.gov.hk/en/cis/climahk.htm |archive-date=2025-09-27 |access-date=2025-10-06 |website=www.hko.gov.hk |language=en}}</ref>

==Land==
The total land area of Hong Kong is 1,108 square kilometres, but about 75% of this land is open countryside and about 40% is designated as country parks.<ref>{{Cite web |date=2019-03-09 |title=What you should know about Hong Kong's country parks |url=https://www.scmp.com/news/hong-kong/society/article/2189241/what-you-should-know-about-hong-kongs-country-parks-and-are |access-date=2024-11-05 |website=South China Morning Post |language=en}}</ref>

==Species richness in Hong Kong==
{{Main|List of birds of Hong Kong|List of mammals in Hong Kong}}
[[Image:Pink Dolphin.JPG|thumb|250px|Chinese white dolphin]]
Hong Kong is home to many species despite being one of the most densely populated areas in the world. In a 2025 report, the [[World Wide Fund for Nature]] (WWF) Hong Kong counted 584 bird species, 272 butterfly species, 134 dragonfly species, 71 reptile species, 70 freshwater fish species, 24 amphibian species, 24 freshwater crustacean species, and 18 species of medium to large non-volant (flightless) land mammals.<ref>{{Cite web |last1=Hui |first1=Tommy |last2=Lau |first2=Michael |last3=Lau |first3=Tobi |last4=Leung |first4=Bonnie |last5=Lo |first5=Yik Fui Philip |last6=So |first6=Ken |last7=Sung |first7=Yik Hei |last8=Yu |first8=Yat Tung |date=2025 |editor-last=Or |editor-first=CKM |editor2-last=Chan |editor2-first=BPL |title=The State of Hong Kong Biodiversity 2025 |url=https://wwfhk.awsassets.panda.org/downloads/the-state-of-hong-kong-biodiversity-2025.pdf |url-status=live |archive-url=https://web.archive.org/web/20250916140436/https://wwfhk.awsassets.panda.org/downloads/the-state-of-hong-kong-biodiversity-2025.pdf |archive-date=September 16, 2025 |website=World Wide Fund for Nature Hong Kong}}</ref> In addition to the 8 groups assessed in the WWF report, Hong Kong has 25 species of bats, 20 species of marine mammals, 120 species of [[Intertidal zone|intertidal]] invertebrates, about 350 species of [[Flowering plant|angiosperms]] and [[gymnosperm]]s,<ref>{{Cite web |title=Hong Kong UNESCO Global Geopark |url=https://www.geopark.gov.hk/en/discover/biodiversity#Mammalia |url-status=live |archive-url=https://web.archive.org/web/20250916142232/https://www.geopark.gov.hk/en/discover/biodiversity#Mammalia |archive-date=2025-09-16 |access-date=2025-09-16 |website=www.geopark.gov.hk}}</ref> and 11 species of small non-volant land mammals.<ref>{{Cite web |title=Mammals |url=https://www.afcd.gov.hk/english/conservation/hkbiodiversity/speciesgroup/speciesgroup_mammals.html#composition |archive-url=https://web.archive.org/web/20250908073413/https://www.afcd.gov.hk/english/conservation/hkbiodiversity/speciesgroup/speciesgroup_mammals.html#composition |archive-date=September 8, 2025 |access-date=2025-09-16 |website=Agriculture, Fisheries, and Conservation Department {{!}} The Government of Hong Kong Special Administrative Region |language=en}}</ref>

In 2020, the BBC reported that the population of the critically endangered [[Indo-Pacific humpback dolphin|pink dolphin]] (''Sousa chinensis''), also called the Chinese white dolphin, had dropped by 60% around the area of construction for a bridge between Hong Kong and Macau.<ref>{{Cite news |last=Keegan |first=Matthew |date=11 August 2020 |title=The world's growing concrete coasts |url=https://www.bbc.com/future/article/20200811-the-eco-friendly-alternatives-to-ocean-concrete |url-status=live |archive-url=https://web.archive.org/web/20200817000639/https://www.bbc.com/future/article/20200811-the-eco-friendly-alternatives-to-ocean-concrete |archive-date=2020-08-17 |access-date=2020-08-18 |publisher=BBC Future Planet |language=en}}</ref><ref>{{Cite web |last=Springer |first=Kate |date=2022-02-25 |title=The last of the pink dolphins |url=https://www.bbc.com/travel/article/20151029-the-last-of-the-pink-dolphins |url-status=live |archive-url=https://web.archive.org/web/20250516095939/https://www.bbc.com/travel/article/20151029-the-last-of-the-pink-dolphins |archive-date=May 16, 2025 |access-date=2025-09-16 |website=www.bbc.com |language=en-GB}}</ref>[[Image:Platalea minor.jpg|thumb|250px|[[Black-faced spoonbill]]]]Numbers of the endangered [[black-faced spoonbill]] (''Platalea minor'') wintering in [[Mai Po Marshes]] rose from roughly 35 in the late 1980s to 152 after 10 years. About 400 were spotted near the end of 2000.<ref>{{Cite web |title=Threatened Birds - Black-faced Spoonbill Platalea minor |url=http://www.wwf.org.hk/eng/maipo/wildlife/birds/bfs.php |url-status=dead |archive-url=https://web.archive.org/web/20090326002752/http://www.wwf.org.hk/eng/maipo/wildlife/birds/bfs.php |archive-date=26 March 2009 |access-date=9 March 2008}}</ref> Despite an increase in the worldwide black-faced spoonbill population from 2024 to 2025, the local population decreased from 375 to 328.<ref>{{Cite web |last=Yip |first=Yun |title=Black-faced Spoonbill Global Population Exceeds 7,000 Deep Bay Decline Demands Urgent Attention |url=https://www.hkbws.org.hk/cms/en/hkbws/work/endangered-species/bfs-en/bfs-census-2025-en |url-status=live |archive-url=https://web.archive.org/web/20250804183336/https://www.hkbws.org.hk/cms/en/hkbws/work/endangered-species/bfs-en/bfs-census-2025-en |archive-date=August 4, 2025 |access-date=2025-09-16 |website=Hong Kong Bird Watching Society |language=en-gb}}</ref>

[[Horseshoe crab]] species found in Hong Kong waters include ''[[Tachypleus tridentatus]]'' and ''[[Mangrove horseshoe crab|Carcinoscorpius rotundicauda]],'' in addition to some reported sightings of ''[[Tachypleus gigas]]''.<ref>{{cite web |title=Horseshoe Crabs in Hong Kong |url=https://www.afcd.gov.hk/english/conservation/con_mar/con_mar_hor/con_mar_hor_hor/con_mar_hor_hor_how.html |url-status=live |archive-url=https://web.archive.org/web/20240120034505/https://www.afcd.gov.hk/english/conservation/con_mar/con_mar_hor/con_mar_hor_hor/con_mar_hor_hor_how.html |archive-date=2024-01-20 |access-date=20 January 2024 |website=afcd.gov.hk |publisher=Agriculture, Fisheries and Conservation Department}}</ref>

==Ecosystems in Hong Kong==

=== Coastline ===
Hong Kong has 733 kilometres of coastline<ref>{{Cite web |title=CIA - world factbook - Hong Kong |url=https://www.cia.gov/the-world-factbook/countries/hong-kong/ |url-status=live |archive-url=https://web.archive.org/web/20250916113919/https://www.cia.gov/the-world-factbook/countries/hong-kong/ |archive-date=2025-09-16 |access-date=2025-10-03 |website=cia.gov}}</ref> with a [[tidal range]] of about 1.4 metres.<ref>{{Cite web |title=Hong Kong's Tidal Regime |url=https://www.cityu.edu.hk/see_mer/HKsituation.htm |url-status=live |archive-url=https://web.archive.org/web/20191229125107/https://www.cityu.edu.hk/see_mer/HKsituation.htm |archive-date=2019-12-29 |access-date=2025-10-03 |website=www.cityu.edu.hk}}</ref> Coastal habitats are broadly categorized as soft or rocky shores, with rocky shores being more exposed to tidal and temperature changes and soft shores being more sheltered.<ref>{{Cite web |title=HKBIH - Intertidal Invertebrates |url=https://bih.gov.hk/en/hong-kong-species/intertidal-invertebrates/index.html |url-status=live |archive-url=https://web.archive.org/web/20251003135056/https://bih.gov.hk/en/hong-kong-species/intertidal-invertebrates/index.html |archive-date=2025-10-03 |access-date=2025-10-03 |website=bih.gov.hk}}</ref>

==== Rocky shores ====
The distribution of species situated in [[rocky shore]]s must be tolerant of conditions when the shore is covered with seawater at high tide and when the shore is directly exposed at low tide. Mobile species adapt to these varying conditions by successfully exploiting microhabitats such as cracks and crevices, or [[Tide pool|pools]] of water that remain during low tide. However, [[Sessility (motility)|sessile]] organisms that [[Filter feeder|filter-feed]], like barnacles and oysters, may die in large numbers during the heat of summer, then recolonize during cooler months.<ref name=":0" />

Rocky shores can be categorized according to how exposed they are. [[Tai Tam]] and [[Tolo Harbour]] are two areas that have sheltered rocky shores, while exposed rocky shores can be found at [[Big Wave Bay, Hong Kong Island|Big Wave Bay]] and [[Shek O]]. Areas like [[Stanley, Hong Kong|Stanley]] and [[Middle Bay (Hong Kong)|Middle Bay]] are semi-exposed.<ref name=":0">{{Cite web |title=HKBIH - Habitats - Rocky Shores |url=https://bih.gov.hk/en/habitats/index-id-7.html |url-status=live |archive-url=https://web.archive.org/web/20250317112816/https://bih.gov.hk/en/habitats/index-id-7.html |archive-date=2025-03-17 |access-date=2025-10-03 |website=bih.gov.hk}}</ref>

==== Soft shores ====
Soft shores occur in sheltered areas with low wave disturbance. This allows for the deposition of finer sediment than on rocky shores. The amount of sediment varies and can result in different types of habitat such as [[mudflat]]s, sandy beaches, and [[mangrove forest]]s.<ref>{{Cite web |title=HKBIH - Soft Shores |url=https://bih.gov.hk/en/habitats/index-id-8.html |url-status=live |archive-url=https://web.archive.org/web/20250313003406/https://bih.gov.hk/en/habitats/index-id-8.html |archive-date=2025-03-13 |access-date=2025-10-03 |website=bih.gov.hk}}</ref>

===== Mangroves =====
Mangrove forests are habitats in tropical and subtropical [[intertidal zone]]s, occurring on soft shores that receive tidal flushing from nearby fresh water sources. The Pearl River is one such fresh water source and it promotes mangrove growth in the [[Deep Bay, China|Deep Bay]] area. Of the eight species of mangrove local to Hong Kong, ''[[Kandelia obovata]]'' is the most common.<ref>{{Cite web |title=Mangroves |url=https://bih.gov.hk/en/habitats/index-id-4.html |url-status=live |archive-url=https://web.archive.org/web/20251002140344/https://bih.gov.hk/en/habitats/index-id-4.html |archive-date=2025-10-02 |access-date=2025-10-02 |website=Hong Kong Biodiversity Information Hub}}</ref>

Some mangrove stands that have been designated as [[Site of Special Scientific Interest (Hong Kong)|Sites of Special Scientific Interest]] (SSSI):<ref>{{Cite web |title=Mangrove Fauna |url=https://www.afcd.gov.hk/english/conservation/hkbiodiversity/speciesgroup/speciesgroup_mangrove.html |url-status=live |archive-url=https://web.archive.org/web/20251002150440/https://www.afcd.gov.hk/english/conservation/hkbiodiversity/speciesgroup/speciesgroup_mangrove.html |archive-date=2025-10-02 |access-date=2025-10-02 |website=www.afcd.gov.hk |language=en}}</ref>

* Mai Po Marshes
* [[Tsim Bei Tsui]]
* [[Tai Tam Harbour]]
* [[Pak Nai]]
* [[Ting Kok]]
* [[Hoi Ha Wan]]
* [[Kei Ling Ha]]
{{wide image|Mangroves_in_Tai_O_-_2007-05-05_15h58m58s%2B%2B%2B.JPG|750px|Mangroves in [[Tai O]]}}

===Fresh water===
Freshwater habitats can be classified by their rate of water flow. [[Lentic]] bodies of water are slow moving and can include lakes, wetlands, and agricultural fields. [[Lotic]] bodies of water are those that are fast moving like rivers and streams.<ref>{{Cite web |date=June 2023 |title=Agriculture, Fisheries, and Agricultural Department Newsletter Issue No. 27 |url=https://bih.gov.hk/filemanager/newsletter/en/upload/35/IssueNo27.pdf |url-status=live |archive-url=https://web.archive.org/web/20250630172917/https://bih.gov.hk/filemanager/newsletter/en/upload/35/IssueNo27.pdf |archive-date=2025-06-30 |website=bih.gov.hk}}</ref> Another factor that differentiates fresh water habitats is the amount of available oxygen. These factors influence animals' various adaptive responses. They may have to attach themselves to surfaces in fast moving bodies of water like rivers<ref>{{Cite web |title=Texas Aquatic Science Textbook Ch. 8 Streams and Rivers |url=https://texasaquaticscience.org/streams-and-rivers-aquatic-science-texas/ |url-status=dead |archive-url=https://web.archive.org/web/20250420194320/https://texasaquaticscience.org/streams-and-rivers-aquatic-science-texas/ |archive-date=2025-04-20 |access-date=2025-10-17 |website=Texas Aquatic Science}}</ref> or have a mechanism for obtaining maximum oxygen supply in bodies of water where this resource is scarce.<ref>{{Cite web |title=Animal respiration and low oxygen {{!}} Research Starters {{!}} EBSCO Research |url=https://www.ebsco.com/research-starters/zoology/animal-respiration-and-low-oxygen |url-status=live |archive-url=https://web.archive.org/web/20251017125341/https://www.ebsco.com/research-starters/zoology/animal-respiration-and-low-oxygen |archive-date=2025-10-17 |access-date=2025-10-17 |website=EBSCO |language=en}}</ref>

==== Rivers ====
Hong Kong has more than 200 streams and rivers, most of them short and without names. Some are natural and some, especially those in urban areas, have been altered and lined with concrete. These concrete lined rivers are called urban rivers or nullahs.<ref name=":1">{{Cite web |title=Water Resources in Hong Kong |url=https://water.hku.hk/ |url-status=live |archive-url=https://web.archive.org/web/20250711045848/https://water.hku.hk/water-resources-in-hong-kong/ |archive-date=2025-07-11 |access-date=2025-10-17 |website=HKU Water Centre |language=en-US}}</ref>

Some of the major rivers of Hong Kong:<ref name=":1" />

* [[Kam Tin River|Kam Tin]] 
* [[Lam Tsuen River|Lam Tseun]] 
* [[Ng Tung River|Ng Tung]]
* [[Shan Pui River|Shan Pui]]
* [[Sheung Yue River|Sheung Yue]]
* [[Shing Mun River|Shing Mun]]
* [[Tuen Mun River|Tuen Mun]]
* [[Tung Chung River|Tung Chung]]

==Problems==

===Pollution===

====General====
In 1989, the Hong Kong government realised that Hong Kong was in danger of becoming a vast, densely populated city. Due to the growth of the economy, the impacts of pollution were increasingly becoming evident in the environment.{{Citation needed|date=October 2025}}

Previously, Victoria Harbour suffered from pollution to such a degree that, despite a government plan to clean the harbour, environmentalists in 1995 worried that it was beyond repair.<ref name="dump">{{cite news |last=Reyes |first=Renato |date=21 December 1995 |title=Victoria Harbour to continue choking on sewage |url=http://www.thestandard.com.hk/news_detail.asp?pp_cat=&art_id=45875&sid=&con_type=1&d_str=19951221&sear_year=1995 |url-status=dead |archive-url=https://web.archive.org/web/20080618070857/http://www.thestandard.com.hk/news_detail.asp?pp_cat=&art_id=45875&sid=&con_type=1&d_str=19951221&sear_year=1995 |archive-date=2008-06-18 |access-date=2007-05-15 |work=The Standard}}</ref> Since 2015 the water quality of the harbour has improved due to the full implementation of the Harbour Area Treatment Scheme (HATS) which began in 1994.<ref>{{Cite web |title=About Clean Harbour {{!}} Environmental Protection Department |url=https://www.epd.gov.hk/epd/english/environmentinhk/water/cleanharbour/about.html#:~:text=Since%20the%20full%20commissioning%20of,Victoria%20Harbour%20has%20substantially%20improved. |access-date=2025-10-17 |website=www.epd.gov.hk}}</ref>

[[Oyster farming|Oyster farms]] have been impacted by a mixture of pollution and competition from cheaper oyster cultivation across the border in China.{{Citation needed|date=October 2025}}

====Air pollution====
{{Main|Air pollution in Hong Kong}}
Air pollution is another problem. Factories, construction, and diesel vehicles have led to increased levels of [[particulate matter]] and [[nitrogen dioxide]]. Air pollution affects flora, fauna, and human health. Cases of [[asthma]] and bronchial infections have risen in recent years, and poor air quality is a factor.{{Citation needed|date=October 2025}}

====Thermal pollution====
According to a [[Hong Kong Baptist University|Baptist University]] study, daily average minimum temperatures have increased by 0.02 degrees (Celsius) annually between 1965 and 2003, due to the [[urban heat island]] effect, which traps heat during the daytime and releases it at night. Average daily maximum temperatures have fallen by 0.014 degrees each year, as air pollution blocks solar radiation. Resulting increased nighttime ambient temperatures incite families to use domestic air-conditioning, which further compounds the problem.<ref>Agnes Lam, "Nighttime temperatures creeping ever higher", Page C1, [[South China Morning Post]], 7 June 2007</ref>

Research has shown that the ambient air-temperature in urban areas can be some 5&nbsp;°C higher than non built-up areas. The [[Hong Kong Polytechnic University]] commissioned [[NASA]] to take a high-resolution [[thermal imaging|thermal image]] of urban Hong Kong by satellite at 22:40 on 4 August 2007, which showed at least a four-degree difference between the coolest areas and the "urban heat islands". The variations are attributable to greater absorbency of man-made materials, and building density that restrict air-flow. The affected area had expanded into [[Hung Hom]] since January, when the first image was taken.<ref name=10.40>10.40pm, 32°. The future's red hot for HK, pg 1, South China Morning Post, 30 September 2007</ref>

====Wall effect====
[[File: Kin Ming Estate.jpg|thumb|Highly-dense buildings can be seen in Tseung Kwan O.]]
There has been increasing concern since 2006 over the [[#"Wall effect"|wall effect]] caused by uniform high-rise buildings that block most air circulation. Due to the population density of Hong Kong and the [[economies of scale]] of mass developments, most new [[tower block]] developments are mass-constructed in groups of 10 to 100, ranging from 30 to 70 stories high. Developers of [[housing estate]]s are often financially motivated to maximize view at the expense of air circulation. Huge wall-like estates along the waterfront .<ref name="wall">{{cite news |title='Asia's walled city' leaves – residents longing for air |work=The Standard|last=Yung |first=Chester |date=21 December 2006 |access-date=2007-03-21 |url=http://www.thestandard.com.hk/news_detail.asp?pp_cat=11&art_id=34625&sid=11441787&con_type=1&d_str=20061221&sear_year=2006 |url-status=dead |archive-url=https://web.archive.org/web/20071217052500/http://www.thestandard.com.hk/news_detail.asp?pp_cat=11&art_id=34625&sid=11441787&con_type=1&d_str=20061221&sear_year=2006 |archive-date=17 December 2007 |df=dmy }}</ref>

In-fill developments are typically constructed by smaller developers with less capital. These will be smaller in scale, and less prone to the wall effect.

[[Environmentalism|Environmental]] group Green Sense expressed concern that their survey on 155 housing estates found 104 have a 'wall-like' design. It cited estates in [[Tai Kok Tsui]] and [[Tseung Kwan O]] as the "best examples".<ref name="wall"/> In May 2007, citing concern over developments in [[West Kowloon]], and near [[Tai Wai station|Tai Wai]] and [[Yuen Long station|Yuen Long]] railway stations, some legislators called for a law to stop developers from constructing tall buildings that adversely affect airflow in densely populated areas, but the bid failed.<ref>Olga Wong, "[https://www.scmp.com/article/592261/call-law-against-wall-effect-fails Call for the law against 'wall effect' fails"], ''[[South China Morning Post]]'', 10 May 2007</ref> In 2007, residents of Tai Kok Tsui, increasingly aware of the problem, have been lobbying against the further proliferation of such high-rises in their area that threaten the last air corridor.<ref name=10.40/>

===Threats to flora and fauna===

====Destruction of habitat====
*Encroachment of the green belt
*Effect of the Building Waste Levy

====Illegal hunting of species by mainland Chinese====
With increasing affluence of the mainland, some mainland Chinese people become able to afford luxury flora and fauna like ''[[Podocarpus macrophyllus]]'' (Cantonese: {{lang-zh|t=羅漢松|labels=no}}; [[Jyutping]]: lo4 hon3 cung4 ) and ''[[Cuora trifasciata]]'' (Cantonese: {{lang-zh|t=金錢龜|labels=no}}; Jyutping: gam1 cin2 gwai1). Some of these species are in danger of extinction due to increased hunting.

====Introduction of non-indigenous/invasive species====
Most of the introduced species do little harm to the ecology of Hong Kong.
However, some species are invasive and cause massive damage to the ecology and/or economy of Hong Kong.<ref>{{cite web|url=http://www.hku.hk/ecology/porcupine/por23/23-cover-rtc.htm |title=Richard Corlett."Hong Kong's Bad Biodiversity" |publisher=Hku.hk |access-date=2012-09-25}}</ref>

Examples are the pinewood nematode from North America and pine-needle scale insect from Taiwan, which together virtually eliminated the native ''[[Pinus massoniana]]'' in the 1970s and 1980s.<ref>{{cite web|url=http://www.hku.hk/ecology/porcupine/por23/23-cover-rtc.htm |title=Porcupine! 23 - Hong Kong's Bad Biodiversity! |publisher=Hku.hk |access-date=2012-09-25}}</ref>

==Gallery==
<gallery>
File:Bauhinia 4.jpg|[[Hong Kong orchid tree]]
File:Camellia granthamiana fruit.jpg|Fruit of ''[[Camellia granthamiana]]''
File:VB 013 White Dragontail.jpg|''[[Lamproptera curius]]''
File:Ophiophagus hannah2.jpg|[[King cobra]]
File:Python molure 13.JPG|[[Burmese python]]
File:Hawaii turtle 2.JPG|[[Green turtle]]
File:Milvus migrans govinda.jpg|[[Black kite]]
File:Bengalkatze.jpg|[[Leopard cat]]
File:Nanhaipotamon hongkongense island.jpg|alt=Nanhaipotamon hongkongense, a freshwater crab first described from Hong Kong, in its natural habitat|''[[Nanhaipotamon hongkongense]]''
</gallery>

==See also==
{{portal|Hong Kong}}
*[[Geography of Hong Kong]]
*[[Conservation in Hong Kong]]
*[[Environment of China|Environment of mainland China]]
*[[List of protected species in Hong Kong]]
*[[Species first discovered in Hong Kong]]
*[[List of mammals of Hong Kong]]
*[[List of birds of Hong Kong]]
*[[List of amphibians of Hong Kong]]
*[[Hong Kong Dolphin Conservation Society]]
*[[Hong Kong Bird Watching Society]]
*[[Air pollution in Hong Kong]]

==References==
{{Reflist}}

==External links==
*[http://www.wwf.org.hk/eng/index.html The World Wildlife Fund (WWF) in Hong Kong]
*[http://www.epd.gov.hk/epd/eindex.html Environmental Protection Department]
*[http://www.hknature.net/ HKNature.net]
*[http://www.hkwildlife.net/ HKWildlife.net forum]
*[https://web.archive.org/web/20050501051608/http://www.hk-ecosite.com/vote/ HK-Ecosite]
*[https://web.archive.org/web/20051124032244/http://hkwaterfall.net/hk_falls/hkwf_mnp.htm Waterfalls in Hong Kong]
*[http://www.chinadialogue.net/article/show/single/en/820-Hong-Kong-how-to-breathe-easier Hong Kong - how to breathe easier]
*[http://www.cleartheair.org.hk/  Clear the Air Hong Kong]
*[https://web.archive.org/web/20080328021043/http://www.hkbws.org.hk/frame.html Hong Kong Bird-Watching Society]

{{Hong Kong topics}}
{{List of animals in Hong Kong}}
{{Asia topic|Ecology of}}

{{DEFAULTSORT:Ecology of Hong Kong}}
[[Category:Environment of Hong Kong| ]]
[[Category:Geography of Hong Kong]]
[[Category:Ecology of Hong Kong]]