Why the

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River matters

10°00′N  105°05′E
A lifeline for Southeast Asia

Connecting Communities, Economies, and Ecosystems

The Mekong River spans 4,909 km from the Tibetan Plateau to the South China Sea. Supporting over 70 million people across the six countries China, Myanmar, Lao PDR, Thailand, Cambodia and Vietnam, it’s at the heart of regional development, culture, and ecology.

Population

>70 million

Basin Area

795,000 km²

Length

4,909 km

A Focus on Food in the Mekong Delta
Feeding Millions along the Mekong

Known as Asia’s rice bowl, the Mekong Delta is one of the most fertile regions of the world, accounting for about 25% of global rice exports worth almost US$6 billion. Fisheries, valued at approximately US$ 17 billion in 2015, provide a critical protein source - including 75% of Cambodia’s animal protein needs.

25%

of Global rice exports

Powering the region
The Mekong’s Energy Contribution
Capacity
36,058
Megawats
(doubling in the 2030s)
Annual production
93,000
GWh / annually

Hydropower dams in the Mekong basin have a total capacity of 36,058 megawatts (MW). This basin-wide capacity is expected to double in the 2030s, with Laos accounting for the highest growth (18,223 MW).

Cultural Richness
A River Shaping Identity and Tradition
100
Ethnic Groups

The Mekong has deep cultural roots, and is integral to the customs, spirituality, and livelihoods of the region’s communities.

Biodiversity Hotspot
One of the World’s Richest Ecosystems

The Mekong Basin is home to over 1,000 fish species and 20,000 plant species, providing essential services that support fisheries, agriculture, and communities.

1,000
fish species
20,000
plant species
Climate Change Hotspot
Floods, Droughts, and Rising Temperatures

The Mekong Basin faces increasing climate risks, with projected temperature increases of 0.8°C by 2030. Floods and droughts are more frequent, disrupting lives and economies. 

+0.79°C
by 2030
The Dilemma of Dams

Dams, an Environmental Challenge

The increasing number (currently 661) of dams built along the Mekong and its tributaries for hydropower production, irrigation, water supply and flood control can also be a problem in reducing the free flow of the rivers, hindering fish migration, stopping the sediment flow and posing an overall threat to biodiversity.

Environmental Challenges
Sand Extraction: A Growing Threat

The subregion is also experiencing rapid urbanization. Vientiane’s population nearly quadrupled between 2008 and 2017, and more than 50 percent of the basin’s population will live in urban areas by 2050. In the lower Mekong delta huge quantities of sand are being extracted for construction works. Over-extraction has vast long-term environmental consequences in the delta, like instability of the river banks, salt water infiltration, loss of arable lands and damaging the fragile river ecosystem.

A Vital Transportation Route

Connecting Economies and Attracting Tourists

The river transports 22.9 million tons of cargo and 70 million passengers annually. Tourism adds significantly to the GDP of the Mekong countries and provinces, Yunnan (23.3.%) and Cambodia (13.5%) seeing the largest share in a rapidly growing market.

The Mekong river Metro-style map shows the basin, its water flows, dams and environmental challenges in an impressive and easily readable manner. Let’s use these multi-layered connections to address the challenges of the 21st century.

Source: Zoï Environment

Governance and Future Cooperation

Collaborative Pathways: Securing the Mekong’s Sustainable Future

Ensuring the Mekong River’s sustainability requires collaboration among its six riparian nations. Through more than 13 regional cooperation frameworks, countries work together to address shared challenges, from resource management to climate resilience.

The Mekong’s future depends on balancing economic growth with environmental stewardship. Sustained collaboration is essential to protect this crucial resource.