Alex Halliday
Founding Dean @ColumbiaClimate, Director @EarthInstitute, Professor in Earth and Environmental Sciences @Columbia.
1640 followers
Lens Rankings
Think Tanks
#764 | 0.000241 | Earth Institute |
#3199 | 0.000031 | Columbia SIPA Center for Energy Policy |
Science
#1365 | 0.000132 | ClimateTwitter |
system
#6386 | 0.000074 | Reality-Based Community |