The International Compost Awareness Week Committee invites submissions for its annual poster contest. This year’s theme is “Compost! Feed the Soil that Feeds Us”. The winning poster will serve as the promotional piece of the 2026 International Compost Awareness Week and the winner will receive US$500. The contest is open to anyone from 9th grade (age 14) or older from anywhere in the world. The contest runs until 14 November 2025. About the poster contest
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MassChallenge — Sustainable Food Solutions Challenge
MassChallenge seeks startups and corporations with proven solutions or technologies in the areas of Sustainable Food & Feed Solutions, AgTech, and others. The Challenge allows participants to work together, create a joint pitch, and scale up innovative solutions. Selected corporate partners will be invited to the MassChallenge Sustainable Food Solutions Challenge Day (June 2026). Selected startups will receive CHF1,000 to contribute towards travel to the event. Applicants can be from any geography. However, partners are headquartered in Europe, so physical collaboration would be mostly in Europe. The application deadline is 17 November 2025. Sustainable Food Solutions Challenge
Global Thinkers Forum — Mentoring Program 2026
The Global Thinkers Forum brings together a diverse network of thought leaders to share their visions of the future, create meaningful conversations around them, and effect positive change in the world. The program consists of an 8-month mentoring cycle that includes one-on-one sessions with experienced thought leaders and individuals aged between 18 and 29 from all over the world. The program’s mentors are successful individuals across several professional fields and countries. The application deadline is 28 November 2025. Become a Global Thinkers Mentee
European Commission — TROPIMUNDO Masters Program in Tropical Biodiversity and Ecosystems
TROPIMUNDO is a 2-year Erasmus Mundus master’s program in tropical biodiversity and ecosystems. Students alternate their semesters between consortium universities in Europe (Belgium, France, Italy) and tropical regions outside Europe (Australia, Cameroon, French Guiana, Guadeloupe, Malaysia). Applicants should have an internationally accepted bachelor’s degree in biology, natural sciences, environmental sciences, or equivalent. The EC provides a certain number of scholarships for EU and non-EU students. The deadline for applications (for scholarship seekers or self-funded applicants) is 30 November 2025. About TROPIMUNDO
Marine Stewardship Council — Ocean Stewardship Fund
The Marine Stewardship Council invites fisheries, scientists, NGOs and postgraduates to apply for grants from the Ocean Stewardship Fund. The fund supports best practices in sustainable fishing with the aim to increase the number of sustainable fisheries around the world. Grants are also available to support small-scale fisheries and fisheries in the developing world. Furthermore, the Student Research Grant awards funding to support postgraduate students who are carrying out research with fisheries engaged or working towards the MSC program. Awards of between £5 thousand to £50 thousand are available across five different strands. The application deadline is 01 December 2025. Ocean Stewardship Fund
Melton Foundation — Global Solvers Accelerator
The Global Solvers Accelerator is an eight-month project-based collaborative learning workshop furthering the Sustainable Development Goals (SDGs). Up to 20 participants will be invited to attend the fully sponsored week-long in-person retreat, the Global Solvers Co-Lab (July 2026). Eligibility extends to young community development practitioners aged between 20 – 35 years from all around the world. Applicants must have an existing social impact project. The program offers financial aid for deserving participants. Applications close on 01 December 2025. Know more
Startupbootcamp — Energy & Climate
Startupbootcamp provides access to funding, supporting the development of innovative solutions in climate change, resource conservation, and renewable energy. The accelerator supports startups developing solutions with the potential to address some of the world’s most pressing challenges in energy and sustainability. Participants have access to a 3-month in-person accelerator designed to enable growth at speed, and €25 thousand cash investment per startup to cover expenses during the program, plus €100 thousand in-kind services. Applications close on 07 December 2025. Accelerator program
Startupbootcamp — Food & Agritech
Startupbootcamp provides access to funding, supporting the development of innovative solutions across sectors such as vertical farming, regenerative agriculture, food supply chain optimization, agritech hardware, sustainable packaging, alternative proteins, precision agriculture, food waste reduction, and agri-fintech. The accelerator supports startups developing solutions with the potential to address some of the world’s most pressing challenges. Participants have access to a 3-month in-person accelerator designed to enable growth at speed, and €25 thousand cash investment per startup to cover expenses during the program, plus €100 thousand in-kind services. Applications close on 07 December 2025. Accelerator Food & Agritech
United Nations — Tourism Innovation Challenge
The UN Tourism Social Innovation Challenge calls on startups, scaleups, and entrepreneurs globally to propose tech-driven solutions in three categories—Community-based Tourism, Inclusivity & Accessibility, and Green Projects. Selected finalists receive benefits including scholarships from Sommet Education Foundation (for hospitality programs at Les Roches), mentorship via the UN Tourism Innovation Network, opportunities to pitch at UN Tourism Demo Day, access to investors and corporate networks. Applications close 08 December 2025. Tourism Social Innovation Challenge
Oklahoma City Zoo & Botanical Garden — Conservation Grants 2026
The Oklahoma City Zoo and Botanical Garden (USA) manages the “Conservation Action Now” program. The program awards small grants for conservation education, scientific research, and species preservation anywhere in the world. Grants are up to US$2,500. The application deadline is 12 December 2025. Find the conservation small grants program