Greenhouse Gases

Question 1

how GHGs absorb and radiate heat

Answer 1

bending vibrations (>2 atoms) cause infrared radiation to move more faster, creates more infrared energy

not for all waves leaving the atmosphere tho

Question 2

Global warming potential (GWP)

Answer 2

measure of contribution of gas on global warming, CO2 as standard
how much energy it will absorb over a period of time

Question 2

Chemoautotrophs

Answer 2

life that use inorganic substances as electron donors or acceptors, exclude carbon or oxygen
no carbon used

produce greenhouse gases

Question 3

Methanogens

Answer 3

bacterial species
animals that ferment food during digestion
on the rise because of so many livestock

Question 4

Nitrous Oxide

Answer 4

high GWP and residence time, fertilizer feeds bacterious which produce n3

removed from atmosphere by bacteria, breakdown by UV radiation

Question 5

Permafrost

Answer 5

soil water which has remained frozen for 2 continuous years are more

every season, some permafrost melts and organic matter builds up but doesn’t have time to decompose, decompose under frost and produce methane, trapped until melted

Question 6

Positive feedback loop of permafrost

Answer 6

melting permafrost –> methane –> increasing temperatures –> melting