Write for Sigma Earth
Sigma Earth publishes practical, well-sourced writing on climate, energy, ESG and sustainable business. Our archive of more than 7,000 articles is read in 11 languages by people working on — and learning about — the transition to a low-carbon economy.
We welcome contributions from practitioners, researchers, companies and organisations with something genuinely useful to say.
Ways to work with us
- Guest or sponsored article — your article, edited and published under your byline, with one relevant link.
- Link in an existing article — a relevant resource added to one of our established, already-indexed articles, where it genuinely helps the reader.
- Homepage feature — a sponsored article that is also featured on the Sigma Earth homepage for one month.
- Courses, jobs and listings — promote a course on Sigma Earth Courses, a role on our sustainability jobs board, or a product or service in our eco-friendly directory.
Rates
Option |
What you get |
Price |
|---|---|---|
Guest or sponsored article |
One article, published permanently, with one relevant link. |
US$150 |
Link in an existing article |
One relevant link added to an established article on the same topic. |
US$200 |
Article + homepage feature |
A sponsored article, also featured on the Sigma Earth homepage for one month. |
US$250 |
Courses, jobs & directory |
Promotion on our courses, jobs or eco-directory portals. |
On request |
Prices are in US dollars, per placement. Every submission is subject to editorial approval.
Topics we publish
- Climate change, impacts and adaptation
- Renewable energy and energy efficiency
- ESG, BRSR and sustainability reporting
- Carbon footprinting and carbon accounting
- Circular economy, waste and recycling
- Sustainable business, finance and supply chains
- Conservation, biodiversity and wildlife
- Sustainable living
Editorial guidelines
- Original and unpublished — not posted anywhere else, and not spun or bulk AI-generated.
- Substantial — typically 1,200 words or more, with a clear point of view.
- Accurate — claims supported by credible, linked sources.
- One relevant link — pointing to a page that adds value for the reader.
- We edit for clarity, accuracy and house style, and may decline any submission.
What we don’t accept
Gambling or betting, CBD, cannabis or pharmaceuticals, adult content, cryptocurrency or forex trading, payday or high-risk loans, essay-writing services, and anything unrelated to sustainability.
Transparency
Sponsored articles and paid placements are clearly labelled and marked in line with Google’s guidelines for sponsored content.
Get in touch
Email info@sigmaearth.com and include:
- the option you’re interested in
- your proposed topic or a draft title
- your website, and the page you’d like to link to
- any deadline
We’ll reply with availability and next steps.