U9 FRQs Flashcards
i. Based on the data in the graph, identify the change in the difference from average temperature in the Arctic between 1980 and 2016.
Increased 1.5 C
ii. Describe the difference in the change in temperatures in the Arctic with the change in global temperatures from 2000 to 2016.
· The temperature is increasing/warming faster/at a greater rate in the Arctic.
i. Identify a greenhouse gas that has a global warming potential GWP that is greater than 1.
Methane
ii. Identify an anthropogenic source that contributes to greenhouse gas emissions.
burning fossil fuels
iii. Explain how increasing amounts of greenhouse gases in the atmosphere are linked to a change in of the ocean.
· Increased ghgs are leading to increased temperature and decreased ocean pH. More CO2 is absorbed by ocean waters, which decreases the pH of the ocean water/leads to ocean acidification.
i. Describe TWO impacts that global climate change can have on human health.
· Decrease in air quality leading to increased respiratory and cardiovascular diseases (i.e. asthma)
· Decreased food security/disruption to available food/disruption to access to food
ii. Describe one effect global climate change can have on marine organisms.
· Ocean warming can cause coral bleaching/loss of algae within corals.
i. Propose one realistic solution to reduce greenhouse gas emissions.
· Sequester carbon through planting vegetation/reinjection.
ii. Justify how the solution posed (carbon sequestration) in would lead to a decrease in greenhouse gas emissions.
· Trees and other plans absorb carbon dioxide through photosynthesis which will decrease the amount of carbon dioxide in the atmosphere.
(a) Based on the rate cited above, calculate the expected increase in sea level, in meters, during the next 50 years.
0.15 m
(b) Identify TWO phenomena that result from an increase in global mean atmospheric temperature and that contribute to increases in sea level. For each phenomenon that you identify, explain how it causes sea level to increase.
- melting of glaciers: as ice melts the amount of water in the ocean increases
- thermal expansion of the ocean: as water warms, water molecules move farther apart and the volume of the ocean increases
(c) Describe TWO environmental impacts that increasing sea level will have on an estuarine ecosystem such as those in the Mississippi Delta, Chesapeake Bay, and San Francisco Bay.
- flooding: loss of mangroves
- change in salinity: species with small tolerance range die
Describe one negative economic impact that an increase in sea level will have on people who live along a coastline.
damage to property would leave to increased insurance premiums
Describe TWO viable strategies that governments could use to discourage people from moving to coastal areas.
- increasing the property tax in the area
- starting a PSA/campaign to increase awareness about the dangers of moving to those areas.
a. Identify one threatened or endangered species and explain why its population has declined.
Giant Pandas because The bamboo forest needed by the giant panda has been destroyed.
