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December 5, 2023: Taking advantage of the CEE Holiday Party photo


October 1, 2022: Welcome to postdoc Yang Shi, who is joining us from Texas A&M

September 1, 2022: Welcome to Joe Palmo, new PhD student in the group!

June/July 2022: Congratulations to Dr. Sid Pai and Dr. Tess Carter on defending their PhDs! Good luck at Columbia and GW!

June 2022: Most of the group goes to St. Louis for IGC10!

April 1, 2022: Welcome to postdoc Hannah Kenagy, who will be working jointly with our group and the Kroll group!





December 15, 2021: AGU group and alum gathering (in person!) in New Orleans (Jessica, Xin, Chloe, Sid, Will, Colette, Tess, and Ishir, aka Heald et al., 2021).

October 18, 2021: Welcome to postdoc Xin Chen, who joins us from the University of Minnesota!

May 12, 2021: Sid profiled on MIT News!




September 15, 2020: During covid times, the group gathers for morning caffeine break in a Cambridge Park (socially distant with masks, of course!)

September 4, 2020: The Frontiers in Atmospheric Chemistry Seminar Series (FACSS), kicks off soon! See to sign up to the email list!

September 1, 2020: Welcome to new PhD student Olivia Norman!




July 1, 2020: Welcome to postdoc Jessica Haskins, recently graduated from the Department of Atmospheric Science at UW!

May 29, 2020: Sam Silva wins the CEE Best Doctoral Thesis Award at the zoom commencement and awards ceremony! Congrats Sam!

January 4, 2020: Group outing to see a Boston Bruins Game. Here Tess, Chloe and Ka Ming pose with foam bear claws! (final score: Bruins 4, Canucks 0)

December 9, 2019: Sid, Tess, Chloe, Ka Ming, and Colette are off to the AGU. The group and alums (Jeff, Will, Amos, Sam, Katie, Qi, and Luke) meet up for dinner in San Francisco!

September 3, 2019: Welcome to new postdoc Ka Ming Fung and new graduate student Ishir Dutta!

July 11, 2019: Congratulations to Dr. Sam Silva on a successful thesis defense! (Pictured after signing the Parsons fire hydrant)

February 1, 2019: Welcome to Chloe Gao, new postdoc in the group

September 25-29, 2018: The whole group attends the iCACGP-IGAC Conference in Takamatsu, Japan (and eats lots of udon and mostly escapes a typhoon!). Sid wins best poster presentation!

July 1, 2018: Colette is on sabbatical at the Max Planck Institute for Chemistry in Mainz, Germany through December.

May 17, 2018: Congratulations to Sid and Katie, who won the Trond Kaalstad graduate student fellowship for leadership and the Postdoctoral Scholar Mentoring award, respectively, at the CEE Awards Ceremony!


December 11, 2017: Colette, Dave, Ruud, Katie, and Sid are off to the AGU Conference in New Orleans! and have dinner with group alums Jeff, Sarah, Xuan, Will, and Amos!

September 7, 2017: Another month, another PhD defense! Congratulations to Dr. Luke Schiferl!

September 5, 2017: Welcome to Tess Carter, new PhD student in the group!

August 7, 2017: Congratulations to the newly minted PhD Dr. Xuan Wang!

July 28, 2017: Welcome to Katie Travis, new postdoc in the group!

May 1-4, 2017: The group heads up the road to Harvard for the 8th International GEOS-Chem Meeting

Jan 9, 2017: Welcome (back!) to Sid Pai, new PhD student in the group!

Jan 2, 2017: Welcome to Ruud Janssen, new postdoc in the group!

Aug 30, 2016: Colette, Will, Sarah, Luke and Sam head to San Francisco for the Annual AGU Conference. Group alumni, Amos, Maria, and Bonne, joined us for dinner!


Aug 30, 2016: Welcome to Flora Su, new graduate student in the group!

June 3, 2016: Emily Shorin graduates! But not before she wins the Paul Busch prize for Environmental Science and Engineering! We all wish Emily luck as moves to DC to start the next phase of her life.

May 24, 2016: Sam wins a NASA Earth and Space Science Fellowship! Congratulations!

May 5, 2016: New group space open for business! (it will never look this clean again!)



Apr 28, 2016: Colette is featured on the MIT homepage




Mar 8, 2016: Will, Sarah, and Dave put together a video on ozone for the CEE Video Competition!

Jan 12, 2016: Belated welcome to CEE senior Emily Shorin! She has been UROP'ing in the group and is doing her senior capstone with us on how future agriculture may impact air quality.

Jan 9, 2016: Will interviewed for Glipmse podcast!


Dec 14, 2015: Dave, Will, Sarah, Luke, Sam, and Colette are all off to the American Geophysical Union conference in San Francisco.


November 13, 2015: Group Outing to the Bruins Game! Unfortunately Boston loses to Colorado 2-3. On the right Luke and Dave discuss hockey strategy. Also check out our Group Photo in front of the Bobby Orr statue!

November 12, 2015: Sarah is interviewed about her research here at MIT! See the video here.



October 18, 2015: LA Times quotes Colette on sensor technology and air pollution monitoring


July 20, 2015: Colette wins the AGU's James B. Macelwane Medal for "significant contributions to the geophysical sciences by an outstanding early career scientist."


June 5, 2015: Our work on the impact of ozone pollution and climate is featured in MIT's Spectrum Magazine

May 4-7, 2015: The whole group heads to the 7th International GEOS-Chem Meeting, where Sam wins the prize for best poster!



April 1, 2015: Welcome to new postdoc Sarah Safieddine who joins our group from the Universite Pierre et Marie Curie in Paris!





March 2, 2015: Dave puts together some great animations of the GEOS-Chem aerosol simulation

February 2015: Heald Group survives Boston's snowpocalypse 2015!






Jan 21, 2015: Colette presents at the World Economic Forum Annual Meeting in Davos, Switzerland.





Jan 13, 2015: Colette is off to Hawaii with the Traveling Research Experience (TREX) class.




Jan 7, 2015: Colette delivers keynote on aerosols at the American Meteorological Society Meeting in Phoenix



Dec 15, 2014: Dave, Will, Jeff, Xuan, and Colette are all off to the American Geophysical Union conference in San Francisco.





Nov 21, 2014: Congratulation to Dr. Bonne Ford. Newly minted PhD!





Oct 1, 2014: Welcome to Jeff Geddes! Visiting postdoc from Dalhousie University






Sep 22, 2014: Will, Bonne, Luke, Qi, and Colette are in Natal, Brazil for the International Global Atmospheric Chemistry Conference.




Aug 8, 2014: Congratulations and best wishes to Qi Chen as she starts her faculty position at PKU.

Jun 16, 2014: Will, Maria, and Colette attend the Community Earth System Model Annual Meeting in Breckenridge


Jun 6, 2014: Heald Group Outing to Georges Island for a BBQ






Jun 2, 2014: Welcome to Sam Silva, new PhD student in the group!




Summer 2014: Colette starts documenting group news!

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