Stewart Williams

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University of Technology, Sydney, Australia

Master of Science (MSc), Environmental Toxicology

Macquarie University, Australia

Postgraduate Certificate, International Environmental Law

University of Newcastle, Australia

Bachelor of Science (BSc), Geological/Biological/Chemical Sciences

Stewart is an experienced consultant team lead with a demonstrated history of working in international development in the environmental sector with 28 years of experience, 18 years at the international level including 13 years in the Pacific Region. Skilled in solid and hazardous waste management (including land based and marine plastics), contaminated sites, chemicals and mining waste management, including policy and strategy development and project management, data collection and analysis, and waste statistical analysis and reporting. 

Stewart’s overall international project portfolio includes the ADB/PRIF Pacific Regional Recycling Centre Scoping Study, UNDP Cambodia Marine Plastics Project, IUCN Plastic Waste Free Islands (PWFI) MTR for the Caribbean & Pacific, ProBlue Marine Plastics (Caribbean OECS), Common Seas Clean Blue (Maldives), Australian DFAT Solomon Islands Waste & Tourism project, World Bank Healthcare Waste Project (Samoa), DFID Plastic Reduction Project (Vanuatu), NZ MFAT MTR Review of the Solid Waste Program (Kiribati), DEFRA/CEFAS Commonwealth Marine Litter Programme (CLiP - Solomon Islands/Vanuatu/Belize), UNDP MTR Review POPs (Pakistan), the EU Pacific Hazardous Waste Management Project (PacWaste - 15 Pacific Island Countries), UNDP EnvSec Projects (7 Western Balkans Countries ) and UNDP Western Balkans Environmental Program with an overall value of USD 80 million.

University of Sydney, Australia

Master of Project Management

University of Technology, Sydney, Australia

Bachelor of Science in Biotechnology

University of Technology, Sydney, Australia

Bachelor of Arts in International Studies

Nate has a strong technical and inter-cultural skills background with a Bachelor of Science, Bachelor of International Studies, and a Master of Project Management. He specialises in solid waste management, data-driven project coordination, and technical advisory across Small Island Developing States. Nate has leveraged strong project management skills and technical expertise supporting initiatives with institutions including ADB, Australian DFAT, DEFRA/CEFAS, EU, IUCN, Monash University, PRIF, ProBlue, and World Bank across the Pacific and Caribbean regions. 

Experienced in digital data collection and analysis using CAPI tools, Nate has led waste audits, litter surveys, healthcare and ship waste assessments, and stockpile evaluations. His expertise includes waste statistical analysis, report writing, customs liaison, stakeholder engagement, and designing training programs for government officials and communities. 

Nate is experienced with the Solomon Islands having conducted solid waste management projects throughout Honiara and Auki, Malaita, coordinated and implemented pilot of waste aluminium and plastic recycling in Gizo, and establishing CAPI data management systems for waste and recycling in Honiara. Nate has extensive fieldwork experience where he consistently delivers integrated waste management solutions aligned with sustainable development goals. Nate applies advanced project management and decision-making tools such as Earned Value Analysis, Multi-Attribute Utility Theory, and PERT, to deliver efficient and effective project outcomes. He has coordinated feasibility studies, pilot programs, and policy development initiatives, including supporting plastic management policy and climate-resilient waste infrastructure design. 

University of Sydney, Australia

Master of Cultural Studies

University of Technology, Sydney, Australia

Bachelor of Arts in Communications

University of Technology, Sydney, Australia

Bachelor of Arts in International Studies

Kayla has worked across a range of environmental waste projects with her focus being on areas such as gender, social development, community engagement and social inclusion. Across the Caribbean and Asia-Pacific regions Kayla has been involved in providing expertise on social and gender issues,  studying and reporting on the implications of a proposed nappy ban in Vanuatu, implications of plastic materials replacing traditionally used organic matter for packaging in local markets, gender/vulnerability assessment and management recommendations, and country-specific cultures of use and attitudes towards various forms of waste. Kayla is also knowledgeable in the design and implementation of Behaviour Change Frameworks such as Community-Based Social Marketing (CBSM) and how they can be used to bring about sustainable behaviour change in a variety of community and industry settings. 

Kayla’s overall international portfolio includes the ADB Project Readiness Financing for preparing the Honiara Sustainable Solid Waste Management Project, the ADB/PRIF Pacific Regional Recycling Centre Scoping Study, IUCN Plastic Waste Free Islands (PWFI) MTR for the Caribbean & Pacific, ProBlue Marine Plastics (Caribbean OECS), a Waste Scoping Study of Norfolk Island (Monash University & Norfolk Island Regional Council), the Australian DFAT Solomon Islands Waste & Tourism project, and JICA’s J-PRISM Project (which developed capacity to sustainably manage solid waste across 11 PICs). 

2016 New Colombo Plan Scholar

A highly prestigious and competitive Australian Government Scholarship valued at $67,000. This scholarship allows up to 100 undergraduate students across Australian universities to study and intern across the Indo-Pacific region in order to create and strengthen ties between Australia and their host locations. Kayla was one of 12 NCP scholars selected for Japan, where she studied Japanese language and culture at Yamaguchi University.

University of New England, Australia

Bachelor of Psychological Science

University of Technology, Sydney, Australia

Graduate Diploma in Adult Literacy and Numeracy Teaching 

University of Newcastle, Australia

Bachelor of Education 

TAE40116

Certificate IV in Training & Assessment 

Leanne holds a Bachelor of Education, Bachelor of Psychology, and a Graduate Diploma in Adult Literacy and Numeracy Teaching, as well as her Certificate IV in Training and Assessment (TAE40116). She has over 15 years of experience working in the vocational education and training (VET) sector developing and delivering training and education programs across workplace, educational, community and private settings. Leanne has extensive experience working with culturally and linguistically diverse peoples, peoples with disabilities and indigenous peoples to improve their capacities to participate in their communities, access further education and training, and develop employability skills. 

She has also provided individual support to learners across a diverse range of vocational areas including tourism and hospitality, conservation and land management, automotive, plumbing, nursing, education support and business administration. Leanne uses her knowledge on applied psychology to develop and deliver education and training programs informed by behavioural change theories that can be applied to address issues surrounding waste management and the environment. Leanne’s overall international project portfolio includes the ADB Project Readiness Financing for preparing the Honiara Sustainable Solid Waste Management Project, the ADB/PRIF Pacific Regional Recycling Centre Scoping Study, IUCN Plastic Waste Free Islands (PWFI) MTR for the Caribbean & Pacific, ProBlue Marine Plastics (Caribbean OECS), and a Waste Scoping Study of Norfolk Island (Monash University & Norfolk Island Regional Council).

University of Technology, Sydney, Australia

Bachelor of Arts in International Studies

University of Technology, Sydney, Australia

Bachelor of Engineering in Electrical Engineering

University of Technology, Sydney, Australia

Diploma in Engineering Practice

Alex was born in Manila in the Phillipines and despite moving to Australia as a child, still maintains a strong Filipino cultural identity. He has a strong interest in developing nations and social justice, and is experienced in programming and business development.  

1.  Islam, R., Waldl, H., Lopez, A. & Jagadish, N. 2018, ‘Propose a Comparison Method of the PV Variability Based on roof-top PV solar data of Australia’, in International Journal of Renewable Energy Research, vol. 8, no. 4, pp. 1882-1889.

Griffith University, Gold Coast, Australia

Bachelor of Environmental Science

Brittany spent time during her adolescence growing up in developing nations such as Montenegro and Samoa which developed her strong interest in sustainability and the circular economy. She is experienced in waste auditing, litter surveys, background research and literature reviews, training development and delivery, data collection, stakeholder engagement, and research and report writing.

University of Newcastle, Australia

Bachelor of Development Studies

BSB30120 

Certificate III in Business

Wyatt is a Junior Project Officer for Marine Plastic Solutions (MPS). Wyatt is currently undertaking a Bachelor of Development Studies and providing project support. His experience includes research and report writing, waste/data collection and characterisation, brand audits and assessment of marine litter. Wyatt is passionate about aid and development and is eager to develop his skills and knowledge in this field.

University of Newcastle, Australia

Bachelor of Visual Communication Design

CUA31020

Certificate III in Screen & Media

BSB20120 

Certificate II in Workplace Skills

Chelsea is currently undertaking a Bachelor of Visual Communication Design and provides engaging and high quality creative content and design for MPS on a range of project and business materials. She is experienced in a range of design software and in content creation across a variety of social media platforms. Chelsea is passionate about international aid and development and how creative content can be used to share information and improve education. 

University of the South Pacific, Fiji

Postgraduate Diploma in Climate Change

University of the South Pacific, Fiji

Bachelor of Science Geospatial Information System and Geography 

Sunishma is an environmental professional with extensive experience in tourism and sustainability across Fiji, Vanuatu and the Solomon Islands. She is adept at implementing strategies for environmental, social, and governance (ESG) performance and has expertise in risk assessment, partnership building and driving sustainable practices for effective environmental initiatives. 

As Sustainability Lead for Tourism Fiji, she developed and executed a robust sustainability roadmap for Tourism Fiji, laying the groundwork for integrated sustainable practices across operational aspects, guiding Fiji towards a leading position in sustainable tourism. She has designed and implemented training to promote Fiji’s agri-tourism and its role in sustainable tourism. She has also assisted the tourism industry with capacity building and trade facilitation, advancing the use of local products and talent, particularly by empowering women entrepreneurs, and collaborated with local governments on community-based resilience and tourism development programs. 

Sunishma attended COP25, as part of the Fiji delegation, and has spearheaded educational webinars, engaged in global recycling days, and collaborated on coral conservation, furthering knowledge exchange and advocating for environmental preservation and sustainable practices within the tourism industry and the broader community.

Griffith University, Australia

Master of Integrated Water Management 

University of Queensland, Australia

Bachelor of Engineering (Hons)

Rosie is an environmental engineer with over 14 years broad experience in project management, engineering and research in the fields of waste management, Water, Sanitation and Hygiene (WASH), and Integrated Water Management. She has worked in the Solomon Islands, Pacific Region, South Sudan, Bangladesh, Uganda, India and Australia across broad sectors including academia, humanitarian response, consulting, local government, and community development. 

She has consulted on WASH and waste projects in the Solomon Islands including undertaking Citywide Inclusive Sanitation planning for Greater Honiara, Solomon Islands. This World Bank project involved stakeholder engagement, technical, finance, governance and capacity assessments, and creating planning horizons. The Nature Conservancy project for Water, Sanitation and Hygiene (WASH) planning and design support for the Arnavons Marine Conservation Park accommodation and learning centre upgrade included water supply assessment, sanitation needs, community engagement planning and advisory services.

Rosie is an adjunct researcher at Solomon Islands National University and researcher with the International WaterCentre. She has presented at various conferences and has contributed to numerous peer-reviewed articles and technical reports.

Avondale University, Australia

Postgraduate Certificate in Lifestyle Medicine 

James Cook University, Australia

Master of Science in Natural Resource Management

University of Papua New Guinea

Bachelor of Science in Marine Biology 

Zelda is a natural resource management, climate adaptation and waste management practitioner with over 15 years of experience working in coastal resource management, project coordination, and research in the Solomon Islands and the Pacific Region. Her expertise spans climate change adaptation planning, sustainable fisheries management, gender mainstreaming, community-based resource management, solid waste management and indigenous environmental management.

She has worked extensively in the Solomon Islands (including Western, Isabel, Malaita, Central, and Guadalcanal provinces) and Pacific Region (including Fiji, Papua New Guinea and Vanuatu) with international organisations such as WorldFish, WWF, the International Organisation for Migration (IMO), CSIRO, SPREP, World Bank and locally based NGOs. She has also contributed to academic research and knowledge products promoting community resilience and environmental governance. 

University of the South Pacific, Fiji

Bachelor of Commerce 

Vaulton has over 10 years of extensive experience in sales, marketing, logistics, and business development in the Solomon Islands. His solid waste management experience includes implementing sustainable tourism practices, managing e-waste associated with the telecommunications industry and brewing, agricultural and organic waste management. He also has experience in supply chain management including international shipping within the brewing and beverage sector and is a member of Plasticwise Gizo.

He has worked in the tourism sector in the Western Province, telecommunications and logistics in Honiara and with Adam Smith International under the Strongim Bisnis program which identified poor waste management practices as one of the inhibiting factors for tourism growth. This AUD14 million, three-year market systems development (MSD) program, working under the umbrella of the Solomon Islands Growth Pro-gram was to stimulate growth in specific sectors (initially tourism, cocoa and coconut) through activities that catalyse business innovation, change practices, strengthen collaboration, manage risks, build resilience and increase women’s participation and empowerment.

Australia Pacific Training Coalition

Certificate IV in Leadership and Management 

Queensland University of Technology, Australia

Certificate of Awards Fellowship (RWASH projects in SI)

Kitakyushu International Techno-cooperative Association, Japan

Environment Education

Fiji School of Medicine

Certificate in Health

Rendy has worked extensively in community engagement in Western Province, Solomon Islands. As the elected president of the Western Province Council of Women she holds an executive role in advocating government policies and implementation of programs to advance the progress and status of women in Western Province and Solomon Islands in general. 

As founder and chair of Plasticwise Gizo, a grassroot environment advocacy network, she coordinates and facilitates women to advocate on environmental issues with rural women and communities as volunteers to reduce and ban plastics through supporting the single use plastic ban in Western Province, Solomon Islands. Through the Garbage Weavers of Gizo program, which empowers women and girls to turn waste into sustainable livelihoods, she has promoted environmental stewardship and created economic opportunities for vulnerable groups.

As member and chair of the Western Province Network for Sustainable Environment she has been involved in advocacy activities for international event days including International Environment Day, World Ocean Day and Coral Triangle Day. 

As a member of SafeNet referral pathway for Western Province Council of Women she is involved in awareness raising, advocacy and the promotion of policies for child protection, domestic violence and all forms of abuse affecting women, children, families and communities within the 26 wards of Western Province.

Rendy is the recipient of the 2025 Australia Awards Alumni Warrior Climate Award in recognition of outstanding leadership and innovation in climate action and environmental sustainability.

University of Natural Resources and Environment, Papua New Guinea

Bachelor in Fisheries and Marine Resources

University of Natural Resources and Environment, Papua New Guinea

Diploma in Fisheries and Marine Resources 

Dafisha has extensive experience working in environmental sustainability and community resilience across the Solomon Islands on a variety of donor funded projects. Through her roles as program manager, community-based fisheries fishery officer and sustainable livelihood officer she has worked on solid and organic waste management and strengthening communities through building sustainable coastal habitats.  

She has managed a Solomon Island Positive Change for Marine Life program which focused on addressing the systemic problem of solid and organic waste through inclusion, diversity and participation. She recruited, trained and managed a dedicated team of local volunteers to support community-based project delivery and foster long-term program sustainability and local ownership.

Through various roles working as a Community-Based Fisheries Fishery Officer under WWF funded projects she has been able to engage and build partnerships with communities and other stakeholders and conduct community workshops, focus group discussions, and interviews within the community. She also has experience working with community facilitators to identify knowledge brokers to prioritise strategies and pathways and identify capacity-building training needs. 

She has worked as a sustainable livelihood officer in Western Province on a CEPF program to conduct mapping workshops with communities around Kolombangara Island and Gizo Island. She coordinated and conducted community-based awareness programs and undertook train the trainer training. Through a DFAT funded program she was responsible for the development of awareness materials, including for in-country media (radio, newspaper, etc.), co-ordinated and conducted community-based awareness programs, and awareness workshops for partners and stakeholders. 

She has undertaken social research on behalf of WorldFish Centre in Leona, Western Province, through conducting household surveys, focus group discussions, key informant interviews, note taking and data entry.