Membership

EXISTING MEMBERS

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To update payment details, change e-mail address, or turn off auto-renewal, [memberful_account_link]click here[/memberful_account_link].

NEW MEMBERS

Subscribe to get:
– instant access to the most useful information without needing to browse sources.
– my Research Notes, which cover most of what I know about a project (example).
– downloads, including my updated list of ammonia plants as an Excel spreadsheet.
– more useful maps, with markers that illustrate each project’s likelihood.
– the Change Log, which lists all the updates, major and minor, in one place.

Buy Annual Membership ($199) →

Thank you for supporting the ongoing maintenance of this site.
Note, memberships are recurring charges and you will receive a reminder e-mail 5 days prior to renewal. You can [memberful_account_link]turn off “auto-renewal”[/memberful_account_link] at any time, and continue to have full site access until your membership runs out.

PUBLIC INTEREST

If you find this data useful but are not able to pay the full cost of Membership, just let me know and we’ll work something out. For me, public interest includes: students, journalists, researchers, charities, and others.