If you would like to send me an invitation, a time-sensitive comment, or a request, please do so here. This form goes to my wonderful assistants, who are able to respond much more quickly to email than I can. I have to warn you that we do have a problem with our responses sometimes being caught by spam filters; so if you don’t hear back from us within two weeks, please check your junk folder: it may be there.

If you have a specific question, please see the many I’ve already answered our FAQ page, our Global Weirding episodes, and Quora before you use this contact form to send an email. About 25% of the emails we receive are questions that are already answered by an FAQ, so please take the time to give the list a quick look before you press send.

If you want me to endorse, sign, or review a book, a letter, a petition, a study or a similar product, I’m sorry I am typically unable to do so. If you are contacting me about a climate solution that is not directly related to my professional expertise, chances are I won’t be able to assist you with it myself; but my FAQs do have some suggestions that may help. Please read my review policy before you use this contact form to send an email.

If your comment relates to Twitter, please tag me in a tweet or comment there. I’m only able to take Twitter-related requests on the platform itself.

If you’re wondering where I’ll be speaking next, most of my events are online, which means you can attend from anywhere in the world! I currently post these on Facebook and Twitter; I let the calendar on this page lapse over the pandemic but am hoping to re-populate it soon.

Many of my public talks have been recorded; I have over a hundred lectures and webinars archived here and our Global Weirding series has over 30 episodes that are available to be viewed and streamed, no permission needed.

If you aren’t in any of these locations, I’m always open to suggestions. Because my air travel is the largest part of my carbon footprint, though, I usually schedule multiple events in the same location – anywhere from five or six to more than two dozen in a week. This takes a lot of coordination, so we generally collect invitations and book in-person events 12-18 months in advance. If you are requesting an in-person event less than 12 months ahead of time, I will probably not be able to accept unless I am already planning to be in that location; but I’m happy to recommend someone to you.

I prefer giving carbon-neutral video presentations, which don’t require so much planning; and so many have taken me up on this offer that I typically give more than 100 virtual presentations each year. My Fall 2023 calendar is already full, but I still have a few slots left for Spring 2024.

I encourage you to use one of my many talks archived here; no permission needed. Thank you!