Every year, ESG and sustainability become more complex. New regulations, climate risks, and technological innovations are reshaping the field faster than most professionals can keep up.

One of the best ways to stay informed is through high-quality newsletters. Whether you’re looking for a weekly update of the main news stories or deep dives into specific topics, people, or companies, you’ll find what you need in the broad range of newsletters out there. 

If you’re working in the field or just have a passing interest in sustainability, newsletters have become one of the most efficient ways for professionals and enthusiasts to stay informed, combining curated insights, expert analysis, and original reporting in one place.

How We Chose the Best Sustainability Newsletters

There are literally hundreds of sustainability newsletters out there, so picking some of our favorites from so many good ones was tough. So, we selected a mix of our favorites based on different criteria:

• Authoritativeness: All of the newsletters we have chosen come from trusted sources, from either people or companies with deep knowledge and experience in the space.
• Depth: Whether you want multiple thousand-word deep dives into certain regulations or standards or just a few sentences highlighting the top news stories of the day, we have you covered. 
• Focus: We have included newsletters that provide a broad overview, touching on all aspects of sustainability, and others that go deep on specific topics, such as circularity or sustainability marketing.
• Popularity: Some of the newsletters we went for have tens of thousands of loyal followers. Others are more niche, hidden gems that are growing quickly.

Picking which of these types best suits your needs ensures you are getting the information you need without overwhelming your inbox.

The 9 Best Sustainability Newsletters for 2026

1. Sustainability Simplified

Sustainability Simplified (previously ESG & Climate News) is one of the most popular newsletters for busy sustainability professionals, with more than 65,000 subscribers. The loyal fan base follows this newsletter for all the biggest news stories in an in-depth yet concise way. 

Written by sustainability leader Tim Mohin, it shares five of the big news stories shaping corporate sustainability every Friday, along with other notable news and podcasts. If you, like most people, struggle to stay up to date with all the news shaping sustainability, this is your best way to get a weekly curated overview. 

👉Subscribe to Sustainability Simplified

2. ESG News

ESG News is a daily newsletter covering breaking developments in corporate sustainability, ESG policy, climate finance, and corporate action. 

For professionals who want real-time updates on sustainability developments, it provides a concise daily digest of the most important news stories.

👉Subscribe to ESG News

3. Circular Economists

The circular economy is one of the fastest-growing fields within sustainability. With new innovations, policies, and companies coming up almost daily. 

Well, to help keep you up to date with this fast-moving space, circular economist Vojtech Vosecky released “The Circular Economists.”  Each weekly edition features a deep dive into circularity, plus the companies, schemes, and policies shaping the circular economy and jobs to help circular economists find their next role. 

👉Subscribe to the Circular Economists

4. The Climate of Business

This climate-focused newsletter from Plan A CEO Lubomila Jordanova features a weekly rundown of all the goings-on in corporate sustainability. 

Released solely on LinkedIn, this newsletter provides a thoughtful overview of all the ESG, sustainability, and climate news businesses need to know. If you like protecting your inbox and reading a weekly news roundup natively on social media, this one’s for you.

RELATED ARTICLE: The 7 Best Circular Economy Newsletters in 2026

👉Subscribe to The Climate of Business

5. Climate Tech VC

Climate Tech Venture Capitalist (CTVC) is a weekly roundup of policies and investments impacting the climate tech community. Released by Sightline, this newsletter provides valuable insights and novel research on policy and investment trends in climate tech.

It provides more than 70,000 subscribers in the investment, public policy, and corporate sustainability fields with essential market intelligence.

👉Subscribe to Climate Tech VC

6. Distilled

Distilled is a weekly newsletter covering the energy transition, renewable energy markets, and emerging infrastructure trends. It features great visuals from Distilled author Michael Thomas’s other company, CleanView, which maps all US data centres and renewable energy projects. 

This Substack newsletter is perfect for anyone who wants to follow the US energy transition in real time. And serves as a regular reminder that the energy transition will continue even when policy enablers lag. 

👉Subscribe to Distilled

7. The Crucial Years

This Substack periodical from long-term climate activist and journalist Bill McKibben features insightful opinion pieces on the energy transition, climate politics, activism, and science. 

Sign up for this one if you want the thoughts on the climate crisis from someone who has been writing about climate change since the 1980s. 

👉Subscribe to The Crucial Years

8. Keep Cool

The Keep Cool newsletter from Nick Van Osdol, released periodically, often multiple times per week, features deep dives into clean tech, the energy transition, and climate science. 

Nick provides deep dives into the trends, companies, and innovations driving the energy transition, as well as the policies that hamper it. It often features co-written articles from climate tech founders and investors to provide deeper insights. 

👉Subscribe to Keep Cool

9. Sustainable Growth

Sustainable Growth is a new bi-weekly newsletter exploring how sustainability and climate companies grow their audiences, customers, and influence.

Written by sustainability writer and marketing strategist Andy Paterson, it focuses on marketing strategy, communications, and thought leadership in the climate and ESG space.

👉Subscribe to Sustainable Growth

The sustainability landscape is evolving quickly, and staying informed has never been more important.

Whether you want daily news updates, deep analytical essays, or insights into climate tech and policy, the newsletters above provide some of the best ways to keep up with the fast-moving world of ESG and sustainability.

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