Elliot Chang

Ex-Cofounder, Chief technology officer at Eion. Computational geochemist by training. Entrepreneur and inventor by experience.

[Elliot Chang @ElliotChangPhD]

@blueicehiggins Hey John, I hear these points and agree with your back-of-envelope calculations. Have you communicated with @Isometric_HQ @PuroCO2Removal or @CascadeClimate on your concerns? We need your experienced advice and wisdom here more than ever.

[Elliot Chang @ElliotChangPhD]

@blueicehiggins @_david_ho_ You’re right, John, that we observe much retardation of the released weathering products even within the soil profile. We’re working to define how these net subprocesses (adsorption, inclusions, co-precipitation) limit ERW efficacy and on what timescales.

[Funga @FungaPbc]

AGU attendees (and other SF-based individuals working in carbon sequestration tech), Funga and Eion are hosting a CDR Happy Hour following the AGU session “Science-Based Gigaton-Scale Carbon Dioxide Removal” on Thursday afternoon. We hope you'll join us!

https://t.co/2dlrs4O05U

[Elliot Chang @ElliotChangPhD]

@Jeffinerca @allegra_mayer @carbon_180 Sensed the audience wasn’t in fear or shock, but rather intrigued by the concept of buying CDR and also incorporating policy-driven practice changes (Buy-and-Rent vs either/or). Allegra’s poster at Goldschmidt Lyon ‘23 was a great pitch for this!

[Elliot Chang @ElliotChangPhD]

@_neilhacker Enjoy coffee at a local park in the morning, watch an English premier league game at a pub, treat yourself to nice groceries (Grand Central Market!), cook a nice impromptu dinner for a friend :-)

[Elliot Chang @ElliotChangPhD]

@anupama_khan @FECMgov @MICleanEnergyRD @CEM14_MI8 By extension, open and collaboratively developed protocols with proper incentives in monitoring. In ERW this includes methods to replicate field trial procedures across various geo-climatic regions.

[Elliot Chang @ElliotChangPhD]

@mati_carbon Congrats on the public announcement, @mati_carbon. Good to see another colleague in the ERW space.

[Elliot Chang @ElliotChangPhD]

@Jeffinerca See you in Lyon if it’s for Goldschmidt!

[Elliot Chang @ElliotChangPhD]

@PeterOlivier Appreciate this. We must also keep in mind the impact on MRV in the soil as geochemistry does change when mixing silicates+biochar.

[Elliot Chang @ElliotChangPhD]

@WillKnapp18 Congrats on this work, Will. Appreciate the insights into subprocesses beyond the field.

[Elliot Chang @ElliotChangPhD]

@PeterOlivier Congrats, Pete. Lots of work to do, and we all need the financing to move rock and measure CDR.

[Elliot Chang @ElliotChangPhD]

@dpaessler @RobertHoglund @carbon_drawdown @RSteffanides @JensHammes @IngridSmet_geo If all methods point to No CDR, that’s also a result to be thoughtful of!

[Elliot Chang @ElliotChangPhD]

@dpaessler @RobertHoglund @carbon_drawdown @RSteffanides @JensHammes @IngridSmet_geo Such uncertainties may cause certain MRV approaches to not show statistically significant CDR between test and control systems. This should be considered limitations of the measurement approach.

[Elliot Chang @ElliotChangPhD]

@dpaessler @RobertHoglund @carbon_drawdown @RSteffanides @JensHammes @IngridSmet_geo Thanks for your thoughts and research, Dirk. Each MRV approach has measurement artifacts that impact comparability to a certain extent. Gas/liquid/solid in theory should reconcile each other, but one approach may have greater uncertainty over another.

[Elliot Chang @ElliotChangPhD]

@liuhenry @carbon_drawdown @RobertHoglund @GreenOlivine @dpaessler @RSteffanides @JensHammes @IngridSmet_geo @LithosCarbon Agreed. Export of weathering products that also address other losses (plant uptake, secondary mineral formation and sorption retardation, and strong acid anion fluxes) should align with other “reservoir” MRV methods. Each approach though has measurement-based artifacts…

[Elliot Chang @ElliotChangPhD]

Soil microbes that immobilize REEs! Inspiration for our company’s soil fingerprinting concept @EionCarbon

https://t.co/6bJQjtMA6b

[Elliot Chang @ElliotChangPhD]

@SFClimateWeek starts tomorrow! Can't wait to represent @EionCarbon with thought leaders in academia, policy, and industry.

[Elliot Chang @ElliotChangPhD]

@Jeffinerca I’m sorry for your loss, JP. I hope Toffee’s binkies will live on in your memory for a long, long time.

[Elliot Chang @ElliotChangPhD]

Great postdoc years, @Livermore_Lab and @BerkeleyLab! Shoutout to @Seaborg_LLNL for the training and fun times. Onward at @EionCarbon - making our mark in the fight against climate change👊