Earth Day is a chance to show your customers what your business genuinely does for the planet, and to share small, practical tips they can actually use. People increasingly want to buy from businesses that care, but they're also quick to spot greenwashing, so honesty matters more than polish.
Here are 35+ Earth Day social media post ideas for small businesses, with ideas for every kind of business, a poll pack, ideas for your industry, captions, hashtags and a quick greenwashing check to run before you post.
When is Earth Day 2027?
Earth Day is always on 22 April, and in 2027 it falls on a Thursday. It's part of a busy few months for environmental dates, from Global Recycling Day in March to World Environment Day in June, so it's a great starting point for a whole season of greener content.
- 35+ post ideas
- Greenwashing check
- Ideas for every business
Environmental dates worth planning for in 2027
Earth Day is the biggest, but these dates give you reasons to keep sharing greener content through spring and summer.
Earth Day post ideas that show real action
The strongest Earth Day posts show something real your business does, however small.
Share what you're actually doing
Recycling, reusable packaging, local suppliers or cutting energy use. Be specific. At 99social, for example, we plant a tree for every new client.
Go behind the scenes
Show your recycling setup, your packaging or how you cut waste in your kitchen or workshop.
Spotlight a green supplier
Celebrate the local or sustainable businesses you buy from, and tag them.
Share your progress honestly
"Here's what we've changed this year and what's next" builds far more trust than a big claim.
Make a pledge
Commit to one specific change for the year ahead, then update people on how it's going.
Earth Day tips your followers can use
Practical, easy tips get saved and shared, especially when they're linked to what you do.
Small swaps
Five easy swaps linked to your products or industry, in one carousel.
How to recycle your product
Tell people exactly how to recycle, reuse or dispose of what you sell.
Repair, don't replace
Show how to make something last longer. Trades and retailers can do this brilliantly.
Save energy, save money
Energy saving tips work for everyone, and they help people's bills too.
Myth buster
Clear up a common recycling or sustainability myth in your industry.
Post ideas for Earth Day itself
A team litter pick
Get the team out in your local area and share the before and after.
Plant something
A tree, a window box or wildflower seeds. Film it and share it.
Celebrate your local green spaces
A love letter to the parks, beaches or countryside on your doorstep.
A green offer
Discounts for bringing your own cup, refills or returning packaging. Make it about less waste, not more buying.
Go outside
Move a meeting outdoors or take your Stories out into nature for the day.
Earth Day ideas for B2B and LinkedIn
Earth Day gets plenty of attention on LinkedIn, so it's a good moment for B2B brands.
Share your sustainability highlights
A couple of real numbers from the year, like energy saved or waste reduced.
How you help clients go greener
Share a case study where your work reduced waste, energy or travel.
Your greener office
Hybrid working, paperless processes or a cycle-to-work scheme.
The Earth Day poll pack
Polls are a light, non-preachy way to get people talking. Use these in Stories or as a LinkedIn poll. The percentages are just for show.
The quick greenwashing check
Greenwashing means making something sound more environmentally friendly than it really is, and customers are increasingly quick to call it out. The Competition and Markets Authority's Green Claims Code sets out what UK businesses need to get right, so run through these five questions before any Earth Day post goes live.
- Is it true?Only claim what your business actually does, and be accurate about it.
- Is it clear?Avoid vague words like "eco-friendly" or "green" on their own. Say exactly what you mean.
- Is it the whole picture?Don't highlight one green detail and hide the bigger impact of what you do.
- Can you back it up?Have the evidence ready if a customer asks how you know.
- Is any comparison fair?"Greener than before" or "greener than others" needs a clear, honest basis.
✓ Five yeses? You're good to go.
Earth Day post ideas for your industry
A few ideas tailored to your sector. For more, see our guide to running a more eco-friendly business.
Retail and ecommerce
- Your packaging, and how to recycle it
- Refills, repairs or take-back schemes
- Second-hand or pre-loved ranges
More: retail post ideas
Hospitality and food
- How you cut food waste
- Local and seasonal suppliers
- Bring-your-own-cup offers
More: hospitality post ideas
Energy and trades
- Energy saving tips for homes
- Solar, heat pumps and insulation explained
- Real customer savings
More: solar company post ideas
Cleaning companies
- The products you use and why
- Refillable and concentrated supplies
- Water saving tips
Gardens and landscaping
- Wildlife-friendly garden tips
- Plants for bees and pollinators
- Peat-free and water-wise ideas
More: landscaper post ideas
Manufacturing and B2B
- How you reduce waste in production
- Energy and materials improvements
- Supplier and supply chain changes
More: manufacturing post ideas
Earth Day captions you can use
Swap in your own details and they're ready to go.
Happy Earth Day 🌍
We're not perfect, but here's what we're doing to make a difference.
This year we [real change], and next we're working on [next step].
Got an idea for how we could do better? We'd love to hear it.
One small change for Earth Day 🌱
Did you know [useful fact linked to your industry]?
Here's an easy way to [tip], and it could save you money too.
Save this post for later and share it with a friend.
Today the team swapped desks for bin bags 🧤
We spent the morning cleaning up [location], and we collected [amount] of rubbish.
Thanks to everyone who stopped to say hello.
Fancy joining us next time?
Earth Day hashtags
Use two or three of these, then add hashtags for your industry and location. The official Earth Day theme is usually announced in the months before, so add its hashtag once it's confirmed.
- #EarthDay
- #EarthDay2027
- #Sustainability
- #GoGreen
- #ClimateAction
- #SustainableBusiness
- #ReduceReuseRecycle
- #EcoTips
- #PlasticFree
- #LoveWhereYouLive
Earth Day dos and don'ts
Do
- Share specific, real actions your business takes
- Give practical tips people can actually use
- Be honest about what you're still working on
- Keep greener content going all year, not just on 22 April
- Plan and schedule your posts in advance
Don't
- Make vague claims like "eco-friendly" with no detail
- Claim to be carbon neutral or net zero without evidence
- Use the same stock image of a globe in someone's hands
- Lecture or shame your followers
- Run an Earth Day sale that just encourages more buying
Earth Day social media FAQs
When is Earth Day 2027?
Earth Day is always on 22 April. In 2027, it falls on a Thursday.
What is the Earth Day 2027 theme?
The official theme is set by the Earth Day organisers and is usually announced in the months before. Check the official website before you create your graphics.
Should small businesses post about Earth Day?
Yes, as long as it's genuine. Real actions and useful tips work well, while vague claims can backfire.
What is greenwashing?
Greenwashing is making a product or business sound more environmentally friendly than it really is. In the UK, the Competition and Markets Authority expects green claims to be truthful, clear and backed up.
Can 99social create my Earth Day content?
Yes. We plan, design, write and schedule content for UK small businesses from £99+VAT a month, with key dates like Earth Day built in. See our social media management for small businesses.
