Discover the best climate newsletters in 2026

A newsletter is an email sent on a regular schedule that delivers curated insights, analysis or news straight to your inbox. Unlike a blog or a social feed, the best newsletters reach you without an algorithm deciding whether you see them.

Start from a curated list like this one rather than search results, then narrow by category. Browsing the best newsletters by topic, whether that is AI, marketing, finance or tech, is faster than sifting through directories that rank on volume rather than quality.

Every newsletter in this directory is one I have personally read and found worth the inbox space. There are no sponsored placements and no filler entries padding the count, which is the main way a best newsletters list goes wrong.

Most of the best newsletters listed here are free to subscribe to. Several run an optional paid tier with deeper analysis or archives, but the core issue arrives at no cost.

Fewer than you think. Five to ten good newsletters read properly beats thirty skimmed, and the fastest way to stop reading altogether is an inbox nobody could keep up with.

Beehiiv, Substack and Kit cover most of the market. Beehiiv suits media style publications, Substack suits writers who want built in discovery, and Kit suits creators selling products to a list.

Three ways, usually combined: sponsorships sold against the send, paid subscriptions for premium issues, and their own products or services promoted to the list. Ad networks on platforms like Beehiiv fill sponsor inventory automatically.

When the writer has access or expertise you cannot get elsewhere, yes. For general news roundups the free tier is usually enough, since the same stories are covered in several free newsletters.

Continuously. New newsletters get added as they prove themselves, and anything that stops publishing, moves behind a paywall or drops in quality comes off. Roughly one in six newsletters on a two year old list is already dead.

Use a dedicated address or a filter that routes every newsletter into one folder, then read them in a single sitting. Treating them as a reading queue rather than as mail is what keeps the habit sustainable.

Pick a platform, pick one specific topic you can write about weekly, and publish before the list exists. Consistency and a narrow focus matter far more early on than design or the tool you choose.

Yes. Submit a newsletter and I will take a look, or update a newsletter if something here is out of date.