Document a4kxyj57wzRKYd4p4rJn74BLy

Message From: Sent: To: CC: Subject: William Happer [happer@Princeton.EDU] 12/8/2017 6:28:36 PM Dickerson, Aaron [/o=ExchangeLabs/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=d0440d9f06994021827e0d0119126799-Dickerson,]; 'Steven E Koonin' [sek9@nyu.edu]; Jackson, Ryan [/o=ExchangeLabs/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=38bc8el8791a47d88a279db2fec8bd60-Jackson, Ry] Wehrum, Bill [/o=ExchangeLabs/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=33d96ae800cf43a3911d94a7130b6c41-Wehrum, Wil]; Gunasekara, Mandy [/o=ExchangeLabs/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=53dla3caa8bb4ebab8a2d28ca59b6f45-Gunasekara,] RE: Red Team Blue Team Dear Bill, Ryan et aS Steve and i have now had a chance to look over the Technical Support Document of the Endangerment Finding. (TSD). There are many questionabie claims in the early sections of the TSD that are focused on "hard" cilmafe science, and are used to hack up supposed harmful effects discussed in later sections. We think that these early parts of the report would be a good target for a Red Team review. Since the TSD was sponsored by the ERA, it would be appropriate for ERA to have it reassessed, given all that has been learned since it was published in 2009. As soon as appropriate Executive Branch personnel are confirmed in their positions, we hope it will he possibie to extend the review to the recent Climate Science Speciai Report (CSSR), issued a few months ago, and to other recent government publications on the topic. Best wishes, Will Sierra Club v. EPA 18cv3472 NDCA Tier 13 ED 002061 00183901-00001