The Heartland Institute has confirmed in a prepared statement that it mistakenly emailed its board materials to an anonymous third party - confirming the source of the documents released here on the DeSmogBlog yesterday.
Heartland then goes on allege that one of the documents (the Climate Strategy) is a fake.
The DeSmogBlog has reviewed that Strategy document and compared its content to other material we have in hand. It addresses five elements:
The Increased Climate Project Fundraising material is reproduced in and confirmed by Heartland's own budget .
The “Global Warming Curriculum for K-12 Classrooms” is also a Heartland budget item and has been confirmed independently  by the author, Dr. David Wojick.
The Funding for Parallel Organizations; Funding for Selected Individuals Outside Heartland are both reproduced and confirmed in the Heartland budget . And Anthony Watts has confirmed independently  the payments in Expanded Climate Communications.
The DeSmogBlog has received no direct communications from the Heartland Institute identifying any misstatement of fact in the “Climate Strategy” document and is therefore leaving the material available to those who may judge their content and veracity based on these and other sources.