Ch. 7 Practice Assignment
Using the fitted line, how much money would be lost if temperature increased by 8°F, assuming the GDP remains the same?
$869 billion; (21.73 trillion x 0.04)
What first brought attention to the problems with fracking in Dimock
A dimock resident went to the news media to get word out about problems with fracking in Dimock
How is hydrofracking used to obtain natural gas from rocks deep in the Earth?
Fluids are pumped into shale causing the rock to fracture, releasing natural gas.
Serge Dedina suggests that the private sector is best suited for __________.
providing innovative wastewater treatment technology for informal housing settlements throughout Tijuana
Drag "Supported" or "Not supported" to the end of each statement.
- The RCP2.6 scenario will result in the smallest losses to the U.S. economy. Supported - Higher fossil fuel emissions will result in greater damage to the U.S. economy. Supported - Reducing fossil fuel carbon emissions by about 5GtC/yr by the end of the century will limit the rise in temperature to less than 2.5°F. Not supported - A temperature change of 10°F will result in a loss of about 6% of the U.S. gross domestic product. Supported - There is no way for the U.S to eliminate losses to the U.S economy due to climate change. Not supported
Drag each statement under the step in the scientific method that it demonstrates.
- observation: some people who live near natural gas drilling sites can set their tap water on fire - question: is the water from wells near gas drilling sites contaminated - hypothesis: well water near gas drilling sites and well water far from drilling sites are different chemically - prediction: if a water well is near a gas drilling site, it will have higher concentrations of contaminations than a water well that is far from a gas drilling site - test: osborn's team collected water samples from well at varying distances from drilling sites and measured their chemical content
At the point of peak consumption, how many barrels of MTBE were consumed in the United States?
300,000 barrels per day
How much lead was emitted in 1970 from nontransportation sources?
50,000 tons
According to the graph, how does the predicted sea level rise for scenario RCP2.6 compare to scenario RCP8.5?
By the end of the century, sea level is predicted to rise approximately ______ higher under scenario RCP8.5 as compared to scenario RCP2.6. 1.5 times (30/20)
Use the diagram below to identify where each possible problem would have originated.
C, B, A
Based on distance to the nearest water well, which drilling site would pose the least risk of methane contamination?
D
If population numbers continue to increase in Tijuana and San Diego, which of the following scenarios are most likely, based on the current situation?
Sewage-contaminated water and because closures will increase
According to Gary Sirota, the proposed Bajagua wastewater treatment plant is a beneficial solution because __________.
all contractural obligations must be met before service fee is due
Both Sirota and Dedina agree that the transborder pollution problems need to be solved. In contrast, they disagree on the issue of ______.
allowing private industry to take a lead role in managing a public resource
The original Clean Air Act was designed to reduce lead emissions, and the 1990 Clean Air Act amendments were designed to reduce urban smog. As implied by the graph's data, one unintended consequence of the legislation and its amendments was _________.
an increase in water pollution
According to the graph's data for lead and MTBE use, from 1992 to 2000 lead emissions ________ and MTBE consumption _________.
declined nearly 100%; increased nearly 200%
According to the graphs, which of the following statements is true?
global temperatures can level off by the end of the century only if fossil use is drastically reduced.
Due to many states' recent bans on MTBE, the use of ethanol in gasoline is increasing. What are some potential outcomes of the shift to ethanol?
increased water pollution from fertilizers and pesticides
Gary Sirota sees the proposed Bajagua Project as a win-win scenario for the public due to the larger treatment capacity of the proposed plant and the lower cost per gallon. How might Serge Dedina respond?
the private sector should never build a plant, regardless of benefits, because water is a public resource that needs public oversight
Where is the natural gas found in shale rock formations?
tiny bubbles of dissolved gases dispersed in the rocks
According to the graph, which of the following statements is true?
under the RCP8.5 scenario, seal level is expected to ride 30 inches by 2100 in San Francisco Bay
