Reletter
Artwork for Simon Mainwaring

Simon Mainwaring

Platform
Substack
PricingOnly free issuesPublishesWeekly
Issues27Founded9 months agoLast Issue6 days ago
Active

Read this Newsletter

simonmainwaring.substack.com
Artwork for Simon Mainwaring

Latest Issues

The Sustainability and AI Reconciliation No One Scheduled

Two of the most sophisticated corporate climate programs in the world published their results this summer. Both showed emissions moving in the wrong direction.

Google’s total emissions rose 11% in 2024 and stood 51% above its 2019 baseline...

6 days ago

Be the Medicine

Rasu Yawanawa at Uni Retreats.org

In 2021, I joined Lynne Twist and Bill Twist and the Pachamama Alliance at the sacred headwaters of the Amazon. Three weeks with the Achuar and Sápara peoples, deep in the forest. I went for one reason: to...

13 days ago
1

The Cost of the Climate Crisis Has Become Unremarkable

That’s the most disturbing thing about it.

According to the Swiss Re Institute, insured losses from natural catastrophes reached $107 billion in 2025. The sixth consecutive year above $100 billion. Slightly below the average of the decade...

19 days ago

Sustainability Has a Sponsor Problem

If you work in sustainability, there’s a truth we need to be honest about. We’ve lost the attention of the CEO.

A joint BSR and GlobeScan survey of 124 sustainability leaders at billion-dollar companies, published this summer, contains a f...

25 days ago

Sustainability Is the Only Major Commitment With No Owner in Finance

There’s one thing I keep hearing from sustainability leaders this year more than anything else. The need to establish the business case and prove commercial value.

And yet here’s what strikes me every time I hear it. Almost every serious c...

a month ago

Key Facts

Contact Information
Newsletter Author
Number of Subscribers
Find out how many people subscribe to this newsletter.

Related Newsletters

Audience Metrics

Subscribers, engagement, traffic and sponsorship for Simon Mainwaring.

SubscribersEngagement59Monthly Web Visits
Accepts SponsorsEstimated Cost per Ad

Authors

The writers behind this newsletter.

  • Simon Mainwaring

    I write about leadership, purpose, sustainability, and technology in a rapidly changing world—exploring how AI and narrative can either fragment us further or help us stay human and reconnect with what matters most.

  • Frequently Asked Questions

    How can I access the email archive for Simon Mainwaring?

    You can find recent issues that have been published by Simon Mainwaring on Reletter by scrolling up to where it says Latest Issues. Tap on the link for any of the most recent emails or hit More Issues to see older ones.

    How many subscribers does Simon Mainwaring have?

    To see how many people subscribe to Simon Mainwaring, simply upgrade your Reletter account. We provide readership numbers and lots of other stats for this newsletter so you can decide if it's worth reaching out to.

    How can I advertise in Simon Mainwaring?

    Newsletter advertising can be extremely effective when it's done right. Before you pitch Simon Mainwaring as a potential sponsor or partner, make sure that you've done your research and checked its newsletter stats with Reletter.

    Then, personalize one of our winning pitching templates and send it to the right person using the contact info provided.

    How much does it cost to sponsor a publication like Simon Mainwaring?

    Newsletter ad rates (or CPM) vary depending on many factors, including industry, number of subscribers, open rate, ad placement and more.

    To find out how much an ad will cost, contact Simon Mainwaring using the contact information provided and ask for a copy of their media kit.

    How can I find newsletters related to Simon Mainwaring?

    Scroll up to where it says Related Newsletters to see other publications like Simon Mainwaring. You can also search our email newsletter directory to discover other newsletters that cover the topics you're interested in.

    How do I contact Simon Mainwaring?

    Reletter provides this newsletter's website URL above, where you will often find their contact information. We also provide links to associated social media accounts and pitching templates so you can reach out fast.