During the activity, students joined ACEECA’s team in planting bamboo, grevillea, and calliandra—species selected for their fast growth, ecological value, and resilience. The exercise not only expanded the school’s green cover but also contributed to healthier ecosystems within the surrounding landscape. Learners expressed enthusiasm as they participated in the planting, gaining practical knowledge on how tree restoration supports soil health, biodiversity, and climate adaptation.

Beyond the tree-planting, ACEECA facilitated an interactive discussion focused on climate change, environmental stewardship, and the role of young people in building sustainable communities. The session emphasized daily actions—such as responsible waste management, water conservation, and maintaining planted trees—that learners can adopt to enhance environmental resilience.

ACEECA’s Project Officer, Ms. Sharon Cherono highlighted the importance of involving schools in long-term restoration efforts, noting that empowering learners today builds a future generation that is conscious, informed, and proactive in addressing climate challenges.

The Materi Boys event marks another milestone in ACEECA’s mission to restore degraded landscapes, promote climate education, and cultivate a culture of environmental responsibility across learning institutions in Kenya.

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The day began with coordinated clean-up activities in major Downtown Streets within the city, demonstrating a shared commitment to reducing waste and promoting sustainable urban living. Volunteers, youth groups, private sector representatives, and civil society organizations participated actively in the exercise, reflecting the growing momentum around environmental consciousness in Kenya’s capital.

The celebrations culminated in a symbolic tree planting ceremony at the Grogon Globe, which underscored the need to restore Nairobi’s green cover and enhance urban resilience to climate change. Through the initiative, participants planted indigenous tree species in selected areas, reinforcing the message that environmental restoration begins with individual and collective action.

Representing ACEECA at the event, the organization’s delegation emphasized the importance of collaboration in addressing urban environmental challenges such as pollution, poor waste management, and declining green spaces. “Sustainable cities begin with clean, green, and inclusive environments,” said ACEECA Chief Executive Officer. “By taking part in Mazingira Day, we reaffirm our commitment to driving community-based action and fostering climate-conscious urban development.”

Mazingira Day, commemorated annually, serves as a national call to action for citizens to take responsibility for their surroundings and adopt eco-friendly practices in daily life.

Through its continued participation in such initiatives, ACEECA strengthens her mission to promote environmental conservation, climate resilience, and community-driven solutions for a sustainable future. ACEECA remains steadfast in supporting government and grassroots efforts to protect Kenya’s ecosystems, green its cities, and empower citizens to be stewards of the environment.

About Mazingira Day

Mazingira Day is a national environmental awareness and action day, celebrated annually to promote environmental protection, waste management, and sustainable living. It unites public and private sector actors, community organizations, and citizens in hands-on activities like clean-up drives, tree planting, and environmental education.
The event underscores Kenya’s commitment to achieving a cleaner, greener, and more sustainable environment for all.

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The activity, held at Chiakariga Chief’s Camp, was part of the ACEECA Restoration of Degraded Riparian Ecosystems Project. Community members, alongside ACEECA staff, sowed seedbeds of Cassia siamea, Calliandra calothyrsus, Gmelina arborea, and Bambusa vulgaris. The tree species were selected for their ability to improve soils, control erosion, and provide economic and environmental benefits.

In addition to nursery establishment, participants received training on tree planting and management practices designed to strengthen climate resilience and promote sustainable land use.

“This nursery is an investment in our future and in the resilience of our ecosystems,” Ms. Sharon Cherono, ACEECA Project Officer told participants during the workshop.

Community members actively took part in sowing the seeds, many noting that the skills gained would help them manage their own tree planting efforts in the future. Once matured, the seedlings will be transplanted along degraded riparian zones in Tharaka Nithi, where they are expected to play a crucial role in restoring ecosystem functions and protecting water sources.

“This is a renewal of our land,” said one community elder. “What we planted today will be remembered by our children tomorrow.”

ACEECA noted that the success of the project depends on community involvement, adding that local participation ensures long-term ownership of restoration initiatives.

The nursery establishment marks the beginning of a series of restoration activities planned for Tharaka Nithi County, where degraded riparian areas continue to pose environmental and livelihood challenges.

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