8. Global climate is in crisis because of recent human activity

Question 1

what does IPCC say about climate change

Answer 1

• humans have warmed climate unprecedented in last 2000 years
• CO2 highest in 2 M years
• sea level rising fastest
• artic sea ice lowest level
• glaciers retreat unprecedented

Question 2

what environmetal changes have been seen due to climate change

Answer 2

• more frequent and intense heat
• heavier rainfall and more frequent
• increasing drought
• more fire weather
• ocean warming, acidifying and loosing O2

Question 3

unless immediatee large scales reductions of greenhouse gas emissions will be made, limiting warming to what degree is out of reach

Answer 3

1.5

Question 4

evidence for climate crisis

Answer 4

desertification
wildfire
permafrost melting
coreal bleaching
rising sea levels

Question 5

hottest year

Answer 5

2023

Question 6

regional warming highest in what areas and in what months

Answer 6

northern pole area
dec-feb

Question 7

CO2 hasn’t been this high since

Answer 7

homo sapiens evolved

Question 8

upshot of CO2 was bout

Answer 8

3 million yeaers ago when australopithecus was dominant hominid

Question 9

what species lived through all this

Answer 9

horseshoe crab

Question 10

what is major driver of CO2 emissions

Answer 10

fossil fuel usage

Question 11

which country has highest CO2 emissions

Answer 11

china

Question 12

what type of glaciers are disappearing

Answer 12

high elevation seen in NA

Question 13

glacier thickness has gone

Answer 13

thinner

Question 14

moost heat is captured by

Answer 14

oceans

Question 15

what has oceans capturing heat causeed

Answer 15

anoxic dead zones due to phytoplankton blooms

less O2 production

extreme weather events

Question 16

what makes most O2 in atmosphere

Answer 16

phytoplankton

Question 17

higher spring and summer temperature mean…

Answer 17

snow melting faster
wildfire risk increase
dry areas becoming drier
more severe fires

Question 18

sea levels and climate change

Answer 18

• storm surges
• coastal erosion
• groundwater inundation
• small islands at risk

Question 19

what is sea rise consensus

Answer 19

1m sea rise

Question 20

oceans acidification , lowering pH

Answer 20

• oceans abosrb CO2, more acid
• corals and marine animals can’t produce calcium carbonate skeletons
• shell formation issues
• coral bleaching leads to this too, expulsion or algae from polyps

Question 21

natural disasters

Answer 21

more
extreme weathers
flood
drought

Question 22

prooblem with natural disaster

Answer 22

costly damages

Question 23

which province thinks least that climate change is happening, and which party

Answer 23

alberta, conservative

Question 24

drivers of climate change

Answer 24

GHGs
carbon based greenhouse gas
CO2
methane
nitrous oxide

Question 25

most emisions are thru what in daily life

Answer 25

electricity

Question 26

primary contributors of increased CO2 in atmosphere

Answer 26

fossil fuel, industry and land use change

Question 27

what are sinks for climate change

Answer 27

ocean atmosphere land

Question 28

emission by country

Answer 28

1.7% is from canada, but 3rd highest per capita wealthiest countries are major contributors

Question 29

who does most emission

Answer 29

top 25 countries is 91.8%

Question 30

change in individual decisions

Answer 30

- renewabl energy - flying less - less diet in animals protein - less cars

Question 31

war room

Answer 31

has not tried to disprove global heating, but they promote AB oil and gas

Question 32

oil sands in alberta

Answer 32

release more carbon than rest of canada combined just greenhouse gas not even including fossil fuel burning

Question 33

impacts of climate change

Answer 33

- water availabiloty less - food production - health effect - infrastructure problems - biodiversity issues

Question 34

things attributed to changes due to humans

Answer 34

- ocean acidification - hot temperatures - global water rise - glacier retreat

Question 35

what if we increase about 1.5 or 2.5 degrees

Answer 35

temperature increase soil moisture change more rain but doesn't mean distrubution will be equal health risk food supply will yield less fish and maize, less nutrition inland migration

Question 36

how will alberta experience climate change

Answer 36

heat and drought more days with 30+ more days or rain more extreme rain does not mean more soil moisture, patchy rains

Question 37

human violence with hotter and drier weather

Answer 37

hotter= more violent crime more drought = more inter-group riots increased risk of conflict

Question 38

denying climate change is...

Answer 38

political republicans usually conservatives usually