David Elfstrom
P.Eng & Certified Energy Manager, spreadsheet nerd. Born @ 327 ppm CO2. Energizing the conversation on climate & safe infrastructure, cycling, #ventilation
3729 followers
Lens Rankings
Science
| #988 | 0.000182 | ClimateTwitter |
| #7034 | 0.000007 | EconTwitter |
Think Tanks
| #3276 | 0.000030 | Columbia SIPA Center for Energy Policy |