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About Your External Brains

What Makes Us Unique

Mark Trexler and Laura Kosloff have been using Personal Knowledge Management (PKM) tools for more than 30 years, starting to build mindmaps in graduate and law school before mindmapping software was even available. They started working with TheBrain® software about 15 years ago, and now rely on their own “external brains” (built with TheBrain® software) to manage the vast amounts of information relevant to their personal and professional lives. They have also built the Climate Web, a massive knowledge solution focused on understanding and tackling climate change. The Climate Web represents the first public effort to tackle a wicked societal problem through PKM. 

Your External Brains represents an extension of Mark and Laura's climate change work, with the goal of encouraging many more people to take advantage of the benefits of Personal Knowledge Management. PKM is a skill set that could change the world in today’s era of information overload, and yet very few people have ever heard about it. It should be something that college freshmen get trained in to kick off more successful college and professional careers!

We’re interested in expanding the scope of this website to include External Brains developed by other people on additional topics, and not necessarily limited to use of TheBrain software. Contact us if you’re interested in contributing your own expertise to help others access useful actionable knowledge.   

Meet The Team

Dr. Mark C. Trexler

In addition to his experience with PKM tools, Dr. Mark C. Trexler has spent 30+ years advising companies on climate change, from sustainability leaders like Stonyfield Farm and Nike to major electric utilities. Mark founded Trexler Climate + Energy Services, the first consulting firm specializing in business responses to climate change, from 1991–2007, and was Director of Climate Risk for the global risk management firm Det Norske Veritas from 2009-2012. Mark has served as a lead author for the Intergovernmental Panel on Climate Change, is a graduate of Antioch College in Yellow Springs, Ohio, holds Masters and Ph.D. degrees from the Univ. of California - Berkeley, and speaks 5 languages.

Laura H. Kosloff

Laura Kosloff is an attorney specializing in environmental and climate change law. She started her career as Associate Editor of the Environmental Law Reporter in Washington, DC, and as an environmental litigator for the U.S. Department of Justice. She was the first chair of the American Bar Association’s climate change committee, and has 20 years of corporate counsel experience. Laura holds a J.D. degree from the University of California at Davis and a B.A. from Antioch College in Yellow Springs, Ohio. Outside her legal life, she works with foreign exchange students spending a high school year in the United States, including through her The Exchange Mom website.

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