Lecture 10 Flashcards
GHG trends
1
Q
Signatories
A
Countries sign on and agree to record yearly emissions and log status of six key sectors and GHG emissions
2
Q
how we sample atmosphere in various locations
A
towers, aircraft, surface flasks, observatories, lasers
3
Q
sulfur hexafluoride
A
big, slow, inert
- once in atmosphere it stays there for a long time
- very bad GHG and fluorinated gas
4
Q
contributors to GHGs
A
worst is coal, then oil, then gas
- fossil fuel combustion and concrete production
5
Q
natural gas emission srepsonsibel for more than half of global emission ___
A
growth
6
Q
4 important fluxes in GHG trends
A
CO2, CH4, N2O, SF6 (fluorinated gases, CFCs)
all are increasing and many are not natural anymore
