PROGRAM FOR MIDDLE AND HIGH SCHOOL STUDENTS USES COMPOST FOR TREES

For the past 30 years, TreePeople – a nonprofit environmental organization – has inspired people to improve their Los Angeles region through the care and planting of nearly two million trees. One current program, Generation Earth – contracted by the Los Angeles County Public Works Department – works with students and teachers to provide resources for service learning projects. For participating teachers who are interested in composting or vermicomposting, Generation Earth connects them with resources available throughout the county, explains Marisa Walker of TreePeople. Generation Earth strongly encourages schools that are participating in the Battle of the Schools Waste Reduction Competition to reduce cafeteria waste by composting on their campus or trying a worm bin in the classroom.



Citizen Forester training instructs residents on how to get trees planted in their neighborhoods, as well as getting approvals from the city, continues Walker. Home Forester training teaches property owners how to adapt their landscaping to prevent stormwater runoff from their property, “touting the benefits of both mulch and compost. …Our integrated approach to watershed management, which combines the best organic solutions such as trees with visionary man-made technologies like cisterns, mimics nature’s own system for capturing stormwater runoff and reducing the flow of pollutants to our oceans.”For more details on TreePeople programs, contact Marisa Walker via email at mwalker@treepeople.org

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Waste management poses challenges, but could unlock major environmental and economic gains

Every day, the city of Rio de Janeiro, one of the largest metropolises in the Southern Hemisphere, generates 17,000 tonnes of waste, ranging from large industrial debris to candy wrappers bought innocently at newspaper stands. While this waste presents a serious and urgent environmental challenge, it also fuels an increasingly significant portion of the economy, with benefits extending beyond financial gains. - When we look at developed European countries, many are already recycling between 40% and 50%, with some reaching 60%. From an economic standpoint, both recyclable materials and organic waste hold tremendous value - stated Adalberto Maluf, National Secretary for Environment and Environmental Quality at the Ministry of the Environment (MMA), during the Methane Forum: Climate Emergency Brake, at the Rio Nature and Climate Week. Citing a 2025 report, Maluf mentioned that Brazil literally throws away R$27 billion annually, while municipalities spend significantly more - R$45 billion - managing all this waste, often overlooking the environmental impact or economic potential buried in landfills and dumps. - We spend R$45 billion to collect and dispose of waste in landfills, yet we manage to recycle less than a third of the potential. I believe it will be necessary to review contracts, create performance-based remuneration mechanisms, and pay for both effectively sorted materials and those diverted from landfills - he added. According to the IBGE, 60.5% of Brazilian municipalities adopt some form of selective waste collection, and several initiatives serve as examples of how to manage city waste. In his panel presentation, Bernardo Ornelas, Project Coordinator at the Rio de Janeiro Municipal Urban Cleaning Company (Comlurb), highlighted Ecoparque do Caju, a national benchmark in waste management and recycling. There, received materials are sorted and can be used for biogas production, organic compounds for urban gardens, or human consumption, in the case of still...