Our story
One evening, while watching a local football match, a group of young neighbours noticed something everyone else seemed to ignore: rubbish piling up at the edges of the pitch, right beside people's homes.
Instead of looking away, they went door to door — explaining how to store waste properly and why paying for collection mattered. Within months, the streets looked different. That simple act of community responsibility became WEMASA.
To see the whole community with enough awareness of waste management and everything about keeping our surroundings clean — a community that leads its own cleanup.
To be a leading organisation providing education and raising community awareness on environmental and natural resources management.
WEMASA — short for Weka Mazingira Safi, “Keep the Environment Clean” — began with a group of young neighbours who refused to accept littered streets as normal. Today we are a registered national NGO working alongside communities, schools, women farmers, journalists and local authorities to turn environmental awareness into everyday action.
We believe lasting change happens when people understand why the environment matters and have the practical skills to protect it. That is why every programme we run combines education, community participation and locally led solutions.
What we do
Our programmes respond to the most pressing environmental challenges facing urban and peri-urban communities in Tanzania — from waste and climate to food, energy and information.
Tree Planting & Greening
Planting trees in schools and communities to restore green cover, provide shade and help …
Women & Media for the Environment
Empowering young women journalists to report accurately and powerfully on environmental issues.
Sustainable & Organic Agriculture
Training women vegetable farmers in organic methods, including natural pesticides, boosters and fungicides made …
Waste Management & Community Cleanups
Mobilising neighbourhoods, beaches and public spaces to clean up — and teaching households how …
Clean Energy & Environmental Data
Generating evidence on cooking-fuel use and waste-collection points to guide cleaner energy choices and …
Environmental & Climate Education
Bringing climate change and environmental awareness into secondary schools so young people grow up …
Featured projects
Organic Farming Training for Women Vegetable Farmers
Hands-on training for women vegetable farmers in Kisewe and Kiburugwa to prepare natural pesticides, plant boosters and fungicides from local plants.
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School Climate Change Awareness Programme
Interactive climate change awareness sessions that reached 3,700 students in 8 secondary schools across Temeke District.
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School Tree Planting Programme
Greening school compounds with pupils and students at Kibasila, Kongowe, Lionel and Vingunguti — building a culture of environmental care from a …
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Beach & Community Cleanups
Mobilising volunteers, residents and partners to clear waste from beaches, streets and public spaces — and to keep them clean.
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WEMASA (Weka Mazingira Safi) is a Tanzanian non-governmental organisation raising community awareness on waste management, environmental conservation and natural resources management — through education, community action and innovation for a better planet.
In the vegetable plots of Kisewe and Kiburugwa, women farmers are learning to protect their crops with natural preparations made from local plants.
WEMASA Communications · 10 Oct 2026As part of International Women’s Day 2026, WEMASA brought women journalists together in Dar es Salaam to learn about and analyse environmental challenges — and how to report on them.
WEMASA Communications · 11 Mar 2026Join cleanups, tree-planting days and community awareness campaigns. No environmental background needed — just energy and commitment.
Become a volunteerDevelopment partners, businesses and institutions can co-design, fund or scale programmes with measurable community impact.
Discuss a partnershipYour gift funds training materials, cleanup equipment, tree seedlings and school awareness sessions.
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Partners
Partner with us, volunteer your time and skills, or support a programme. Together we can keep our communities clean, green and healthy for generations to come.
