Greenhouse gas ocean warming

Question 1

What does the ocean do for us?

Answer 1

• produces more than half of the oxygen on the planet
• main food source for over a billion ppl
• employment for over 200 million ppl

Question 2

what can be said about the protection of our ocean (large scale)

Answer 2

• no government body designated with control
• no authority to police intn’l waters unless crime occurs
• every coastal country ‘owns’ some ocean.

Question 3

who is monitoring our oceans?

Answer 3

• ICPP (intergovnernmental panel of climate change)
• DFO
• NOAA, EPA
• NIWA new zealand

Question 4

What are the greenhouse gases?

Answer 4

• water vapor
• carbon dioxide
• methane
• nitrous oxide
• ozone

Question 5

which two gases are technically greenhouse but typically ignored, and why?

Answer 5

CO, HCl.

-short lived

Question 6

what is water vapor’s role in relation to greenhouse gases?

Answer 6

• the amount of WV in the atmosphere is actually controlled by (does not control) temperature
• warm temp means more WV
• WV now accounts for 60% of warming effect of greenhouse gases

Question 7

what is our worst greenhouse gas in volume produced?

Answer 7

CO2

Question 8

GWP: what is the acrynym and what is ittttttt

Answer 8

• global warming potential

- a measure of the warming potential of a gas compared to CO2 over 100 years

Question 9

in 2014 by how much did global CO2 levels exceed that of the beginning of the industrial revolution?

Answer 9

43%

Question 10

what is the second most prevalent greenhouse gas? what percentage of emissions in the US?

Answer 10

methane

10%

Question 11

what is the main source of methane?

Answer 11

agriculture

-also natural gas industry

Question 12

how long does methane stay in the atmosphere?

Answer 12

a decade

Question 13

what is the third most important greenhouse gas?

Answer 13

ozone

Question 14

by how much have ozone levels raised since pre-industrial times?

Answer 14

by 30%, but at ground level. (levels higher up are dropping)

Question 15

how is ozone reported for GWP?

Answer 15

its not, but because it interacts with methane it is included in the GWP for methane

Question 16

what is another way, other than GWP, to measure global warming potential?

Answer 16

ODP - ozone depletion potential

Question 17

is it better to lose or gain ozone?

Answer 17

neither. both cases are bad.
- helps break down some greenhouse gases
- works with methane to destroy

Question 18

what is the nitrous oxide effects?

how long does it stay in the atmosphere?

Answer 18

1kg is equal to almost 300kg of CO2

->100yr

Question 19

why do greenhouse gases cause the world to heat up?

Answer 19

the gases capture infrared radiation from the sun that would have been reflected into space

Question 20

what are the problems associated with oceanic warming?

Answer 20

• rising sea levels (zonation)

- thermal challenge to marine organisms

Question 21

Where is the water coming from (oceanic water level rise)

Answer 21

• thermal expansion of water (increased volume, decreased density)
• melting ice (glaciers and polar caps, ice sheets from greenland and antartica)

Question 22

T/F:

organisms will move to keep within their thermal optima

Answer 22

F

Question 23

T/F:

thermal optima are extremely different for different organisms

Answer 23

T

Question 24

T/F:

many marine organisms cannot move at the rate at which the oceans are heating

Answer 24

T

Question 25

T/F:

overall thermal effects do not describe local conditions

Answer 25

T

Question 26

LOOK AT SLIDE 27

Answer 26

I CANT BE BOTHERED TO CARE

Question 27

who is the smartest in the planet?

Answer 27

it fluxuates daily between monica and erin