As Nepal advances toward its climate commitments under the Paris Agreement and national plans, one target stands out as both urgent and ambitious: achieving net zero carbon emissions. This goal, though complex, is not impossible—especially if Nepal harnesses one of nature’s most powerful, yet often overlooked, climate allies: the Vetiver grass system.
With rising temperatures, rapidly melting Himalayan glaciers, unpredictable monsoon patterns, and an alarming increase in landslides and flash floods, Nepal is already living the harsh realities of climate change. While industrialized countries focus on energy transition, electric vehicles, and technological carbon capture, countries like Nepal—with limited industrial emissions but high vulnerability—must champion nature-based solutions that are affordable, scalable, and regenerative.
This is where Vetiver grass (Chrysopogon zizanioides) offers a uniquely powerful opportunity. Traditionally known for its use in soil conservation, erosion control, and slope stabilization, vetiver is now gaining recognition as a natural carbon sink. Its dense and deep root system, which can grow over three to five meters underground, allows it to sequester large quantities of atmospheric carbon dioxide into the soil.
Recent studies have shown that Vetiver grass (Chrysopogon zizanioides) has the potential to sequester 15 to 20 metric tons of CO₂ per hectare per year—a rate that rivals or even surpasses many tree-based afforestation projects. What sets Vetiver apart is its rapid growth cycle and its massive, fibrous root system, which penetrates 3 to 4 meters deep into the soil within a single growing season. Unlike trees, which can take decades to reach maturity and store significant carbon, Vetiver achieves measurable carbon sequestration in just months.
The deep-rooted nature of Vetiver is critical: carbon stored below 1 meter in the soil is far less likely to be disturbed by erosion, fire, or agricultural tilling, meaning the captured CO₂ remains stable and locked in the ground for decades, if not centuries. This makes Vetiver not only effective, but a highly reliable long-term carbon sink.
Moreover, the Vetiver System allows multiple planting and harvesting cycles per year depending on climatic conditions and management practices, which further accelerates carbon absorption. Each cycle contributes fresh biomass, organic matter, and root expansion—deepening the soil’s carbon bank.
From a land-use perspective, Vetiver can be strategically integrated into a variety of landscapes to maximize both environmental and economic benefits. On degraded and barren lands, Vetiver plays a crucial role in restoring soil fertility while sequestering significant amounts of carbon. Along flood-prone riverbanks, it stabilizes the soil, reduces erosion, and captures sediment-rich carbon, contributing to cleaner waterways. When planted on road and highway slopes, Vetiver prevents erosion and helps create resilient green corridors. Additionally, when used along agricultural field boundaries, it serves as a protective buffer that not only shields crops from wind and water damage but also enhances carbon storage capacity, supporting sustainable farming practices.
A major advantage of Vetiver is its low maintenance: it requires minimal irrigation, no pesticides, and thrives in poor soils. This makes it ideal for large-scale deployment in Nepal, especially through community forestry programs, local governments, youth cooperatives, and eco-enterprises.
In a time when Nepal seeks to meet its Net Zero Carbon target within the next five years, adopting the Vetiver System at scale could be the most cost-effective, nature-based, and scientifically sound strategy available.
Nepal’s net zero ambition is bold—but it is within reach. In Vetiver, we have a low-cost, high-impact, nature-based solution already tested across different terrains of Nepal. As the world looks for scalable climate solutions, Nepal has the chance to lead by example—not by waiting, but by planting. The Vetiver System is not just about green landscapes; it’s about a green future.
With the goal of achieving net-zero carbon emissions within the next five years, the vetiver system in Nepal shows promising potential. In 2022, Nepal emitted approximately 56.7m metric tons of CO₂ equivalent greenhouse gases. According to studies, vetiver grass can absorb around 15.24 metric tons of carbon per hectare per year. Based on this, Nepal would need to plant vetiver across approximately 333,335 hectares to offset its annual carbon emissions.
To achieve this goal within five years, vetiver would need to be planted on 66,667 hectares of land annually. Out of Nepal’s total 4.1m hectares of arable land, the proposed plantation area represents only 8.13 percent, making it both practical and achievable. To help visualize these facts clearly, a visual infographic has also been prepared, showing how Nepal can realistically achieve its net-zero target using the vetiver system.
To maximize impact, strong policy support and cross-sectoral alignment are essential. The government should formally recognize Vetiver systems within national carbon offset strategies and incorporate Vetiver-based interventions in future updates of Nepal’s Nationally Determined Contributions (NDCs). Additionally, it is crucial to facilitate streamlined carbon credit certification mechanisms, allowing local communities, municipalities, and private firms to access benefits from global carbon markets. By taking these steps, Nepal can accelerate progress toward its net zero targets while simultaneously unlocking significant opportunities for climate finance and green investment.
While carbon sequestration is a central focus, Vetiver offers multi-dimensional value across environmental and socio-economic domains. It plays a vital role in soil and water conservation by reducing erosion, restoring fertility, and enhancing groundwater recharge. In the context of disaster risk reduction, Vetiver strengthens slopes and embankments, offering natural protection against landslides and floods. It also generates livelihood opportunities through its use in handicrafts, essential oil extraction, composting, and livestock fodder. Moreover, Vetiver supports biodiversity and ecological regeneration by reviving degraded landscapes and fostering the growth of native flora and fauna.
