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The air is crisp with the promise of a New Year, and with it comes a fresh chance to make a real difference. As we step into 2027, we’ve pulled together the definitive roadmap for anyone in the UK eager to live greener, campaign louder and stay informed.
It’s more than a list of dates: from week long challenges that rewire your habits to major summits that shape our collective future, every event here is a chance to get involved and see where global and local action is happening.
This global campaign encourages people to try a vegan lifestyle for the entire month of January. It helps participants reduce their food-related carbon footprint and experience the health and ethical benefits of a plant-based diet by providing extensive resources and support.
27th – 28th: Sustainable Foods Conference
This essential conference brings together food industry leaders and policymakers to tackle one of the planet’s toughest challenges: creating a sustainable food system. The focus is on transitioning to regenerative agriculture, accelerating the growth of plant based foods, and radically minimising supply chain waste.
Observed annually on February 2nd, this day raises awareness about the importance of wetlands (like marshes, swamps, and peatlands) for global biodiversity, water purification, and their huge capacity for carbon storage.
1st – 3rd: Sustainability Week London
This three day Economist Impact conference brings together leaders from finance, operations, procurement, technology, risk and sustainability to explore how businesses can stay resilient in an unpredictable world. The 2027 theme moves away from setting targets for their own sake, and instead examines how climate risk, energy insecurity, supply chain disruption and AI are reshaping the hard choices companies are making.
Celebrated on March 3rd, this UN day raises awareness about the world’s wild animals and plants and promotes their conservation. It is often focused on the threats of illegal wildlife trade and the need to protect endangered species.
8th -14th: Food Waste Action Week
Food Waste Action Week is a vital annual initiative spearheaded by organisations like WRAP and Love Food Hate Waste. It’s dedicated to tackling the massive problem of food waste head on by raising public awareness and actively mobilising individuals, companies, and organisations to adopt practical, impactful strategies for reduction.
Celebrated on March 18th, this event encourages the world to recognise recyclables as a valuable “Seventh Resource”. It promotes the circular economy and encourages individuals and governments to commit to more responsible recycling and waste management.
This annual observance on 23rd March brings the climate conversation back to people and place, highlighting how rising temperatures, stronger storms and shifting ecosystems affect everyday life. It encourages communities, businesses and governments to collaborate on practical solutions that build climate resilience and protect a stable future.
The world’s largest non religious observance, held on April 22nd. Its purpose is to promote environmental awareness and encourage immediate action, including promoting sustainable practices, reducing waste, and supporting renewable energy.
A dedicated day to highlight the staggering economic, social, and environmental impacts of food waste. It encourages governments, businesses, and individuals to implement strategies to reduce waste from farm to fork.
This annual awareness day, now celebrated globally, champions the protection of threatened and endangered wildlife and the habitats they depend on. It’s marked with community events such as pollinator garden plantings, talks and chalk art contests that celebrate wildlife comeback stories and the laws that protect them.
22nd: International Day for Biological Diversity
Held on May 22nd, this UN day raises awareness about the importance of biodiversity, the variety of life on Earth and promotes the conservation and sustainable use of the planet’s biological resources.
The Wildlife Trust’s challenge encouraging the UK public to do one simple, fun, or meaningful ‘wild’ thing every day throughout June, fostering a deeper connection with nature.
The UN’s most important day for encouraging worldwide awareness and action for the protection of our environment. It usually centers on a specific theme, such as land restoration or air quality.
A day to highlight the importance of the oceans for sustaining life on Earth and the urgent need for action to protect them from threats like plastic pollution and overfishing.
A day focused on encouraging individuals and businesses to adopt refillable and reusable alternatives to single use plastic containers, such as water bottles and coffee cups, tackling plastic pollution at the source.
19th – 27th: London Climate Action Week
Hosted by the climate think tank E3G, this is one of the world’s largest independent climate events. It fills the capital with more than 1,000 events, from conferences to community gatherings, that bring together governments, businesses and campaigners to turn climate commitments into real world action.
22nd – 23rd: Reset Connect London
This two-day expo at ExCeL London is the flagship event of London Climate Action Week, bringing together business leaders, investors, policymakers and start ups focused on decarbonisation, climate resilience and green investment. Attendees get expert led conference sessions, an exhibition of innovative sustainability solutions and curated networking to help turn climate ambitions into funded, practical projects.
A global movement that encourages individuals, businesses, and communities to consciously reduce their plastic waste for the month, empowering participants to find long term solutions to plastic pollution.
1st – 2nd: European Meeting on Circular Economy, Green Energy & Clean Technologies
This two day London conference brings researchers and industry experts together to explore how circular economy principles, renewable energy and clean technologies can speed up the shift to net zero. Its topics include sustainable manufacturing, waste management and recycling, resource efficiency, industrial decarbonisation and green hydrogen.
A focused awareness week in the UK dedicated to achieving net zero. It features conferences, events, and parliamentary discussions aimed at accelerating decarbonisation across all sectors.
This UN observance highlights the vital role lakes play in supplying fresh water, supporting biodiversity and regulating the climate. It calls for action against the pollution, overuse and climate change that are putting these ecosystems under growing pressure.
An Oxfam campaign encouraging the public to shop second hand for 30 days. This reduces clothing waste, lowers demand for fast fashion, and encourages a more sustainable, circular lifestyle.
A massive global initiative where volunteers come together to clean up litter in their communities. The event aims to raise awareness about mismanaged waste and catalyse lasting societal behaviour change.
29th: International Day of Awareness of Food Loss and Waste
This UN day aims to raise awareness of the importance of addressing food loss, especially considering the vast percentage of food produced that goes to waste while global hunger persists.
Participants are encouraged to take collective action to reduce their waste in daily life, focusing on actions like avoiding single use plastic, composting, and choosing minimal packaging.
7th – 8th: Sustainability LIVE London
This two day summit at Olympia London gathers over 3,000 senior sustainability and ESG executives to share strategies for accelerating progress towards net zero. With 300+ speakers, panel discussions and workshops covering sustainability strategy, AI, water positivity, circularity and sustainable supply chains, it also hosts the Global Sustainability Awards 2027.
18th – 27th: Great British Beach Clean
The Marine Conservation Society’s flagship citizen science event sees volunteers across the UK clean up their local beaches and record every piece of litter they find. The data gathered drives campaigns for change, and has already helped bring about the plastic bag charge and a ban on microplastics in personal care products.
Recycle Now’s major annual campaign focused on encouraging the public to recycle responsibly, accurately, and consistently across the UK to boost national recycling rates.
14th: International E-Waste Day
Raises awareness about the environmental issues associated with E-Waste (WEEE Waste) and promotes its responsible collection, reuse, and recycling to recover valuable materials and prevent pollution.
An annual event to raise awareness about hunger and poverty worldwide, and to promote food security and sustainable agriculture as key solutions to global challenges.
12th: Carbon Literacy Action Day
This is the world’s largest climate education and action event, timed to coincide with the UN climate conference. People across the globe complete Carbon Literacy training on the same day, turning what they learn into collective, measurable action to cut emissions.
4th: World Wildlife Conservation Day
Held by the WWF to stress the importance of wildlife conservation, especially as approximately one million animal and plant species are currently under threat of extinction.
5th: International Volunteer Day
Observed by the United Nations to acknowledge the impact that collective action and volunteering have on the world, recognising the 800 million people globally who volunteer monthly.
The biggest changes start with the combined efforts of individuals and communities, and 2027 is full of chances to play your part. So mark your calendar, share it with your networks and get involved.
Ready to take action? Drop our sustainability team an email at sustainability@bywaters.co.uk for more information or to join in.
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