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9.6: Resources and References

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    Review

    Key Points

    • Greenhouse gases have played an important role in the regulation of the Earth’s climate since the planet developed an atmosphere. However, the sudden increase of anthropogenic emissions during the Anthropocene is disrupting that regulation.
    • Besides the general increase of average surface temperatures, global warming is causing complex patterns of climate change that vary among regions and latitudes. In addition, the world’s oceans are becoming more acidic, sea levels are rising, permafrost is melting and ocean currents may change.
    • The effects of climate change on natural systems affects the ranges of species and generally reduces biodiversity. The changes are occurring faster than natural systems could adapt.
    • The effects of climate change on human security operate partly through those biotic effects and partly they arise from severe weather, droughts, crop failures and the displacement of ever larger populations. Especially threatening are the inundation of densely populated coastal plains and shortages of fresh water.
    • Those impacts are affecting the world’s poorest most severely, while the levels of GHG emissions are highest with developed countries.
    • Climate change can be addressed in principle by prevention, mitigation and adaptation. Apart from preventing the worst outcomes, the emphasis now lies on mitigating its impacts and adapting to those impacts that have become inevitable. The goal is to maximize human security in equitable and just ways.
    • Barriers to effective countermeasures are technological, cultural and political. Other sources of human insecurity such as overconsumption, overpopulation, industrial growth, militarization and economic inequity render those countermeasures more difficult to achieve.

    .Extension Activities & Further Research

    1. Who are the victims of climate change? While this chapter focused on human inequities, can you think of others?
    2. While the harm of climate change is undeniable, whether it constitutes an injustice is a matter of personal ethics. Where do you stand on that? Would you extend your interpretation of justice to include nonhumans, ecosystems and the biosphere?
    3. Identify the major issues and challenges that characterise British Columbia’s transition towards climate neutrality. In what ways are you contributing personally to the problems and to the solutions?
    4. Explore the interactive presentation of the ‘Global Conveyor Belt.’ Speculate how it is likely to affect the climate of your home region, and how that climate might change if the currents change.

    List of Terms

    See Glossary for full list of terms and definitions.

    • abatement technologies
    • climate justice
    • divestment
    • equity and equality
    • Hothouse Earth scenario
    • keystone species
    • marginalized communities
    • mitigation and adaptation
    • resilience
    • SDG #13
    • status quo bias

    Suggested Reading

    Engel, J., & Gross, D. (2019). The decolonial atlas. https://decolonialatlas.wordpress.com

    Levin, K. (2018, October 7) Half a degree and a world apart: The difference in climate impacts between 1.5°C and 2°C of warming. World Resources Institute. Retrieved August 28, 2019, from https://www.wri.org/blog/2018/10/hal...nd-2-c-warming

    Oreskes, N., & Conway, E. M. (2010). Merchants of doubt: How a handful of scientists obscured the truth on issues from tobacco smoke to global warming. Bloomsbury.

    Steffen, W., Rockström, J., Richardson, K., Lenton, T. M., Folke, C., Liverman, D., Summerhayes, C. P., Barnosky, A. D., Cornell, S. E., Crucifix, M., Donges, J. F., Fetzer, I., Lade, S. J., Scheffer, M., Winkelmann, R., & Schellnhuber, H. J. (2018). Trajectories of the Earth system in the Anthropocene. Proceedings of the National Academy of Sciences of the United States of America, 115(33), 8252–8259. https://doi.org/10.1073/pnas.1810141115

    Wynes, S., & Nicholas, K. A. (2017). The climate mitigation gap: Education and government recommendations miss the most effective individual actions. Environmental Research Letters, 12(7). https://doi.org/10.1088/1748-9326/aa7541

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    Long Descriptions

    Figure 9.2 long description: Scatter plot of \(\ce{CO2}\) emissions per capita versus GDP per capita in 2016. The subtitle says, “Carbon dioxide (\(\ce{CO2}\)) emissions per capita are measured in tonnes per person per year. Gross domestic product (GDP) per capita is measured in international dollars in 2011 prices to adjust for price differences between countries and adjust for inflation.” On the x-axis is GDP per capita, and on the y-axis is \(\ce{CO2}\) emissions per capita.

    The scatter plot shows the general trend that a country with a larger GDP per capita also has greater \(\ce{CO2}\) emissions per capita. Most points are bunched closely together on a diagonal that goes from the bottom-left corner to the top-right corner. Data points differ in size, most likely because of population.

    Here are some individual data points, with exact figures taken from this interactive version of the \(\ce{CO2}\) emissions per capita versus GDP per capita scatter plot:

    • In the bottom-left corner is Burundi, with a tiny dot representing GDP per capita of 665 international dollars and 0.05 tonnes of \(\ce{CO2}\) emissions per capita.
    • In the middle of the lower end of the pack is Kenya, with a small dot representing a GDP per capita of 3,169 international dollars and 0.35 tonnes of \(\ce{CO2}\) emissions per capita.
    • Closer to the centre is Indonesia, with a mid-sized dot representing a GDP per capita of 10,911 international dollars and 2.14 tonnes of \(\ce{CO2}\) emissions per capita.
    • China, near the centre and above Indonesia, has the largest dot, representing a GDP per capita of 12,569 international dollars and 6.86 tonnes of \(\ce{CO2}\) emissions per capita.
    • The United States, with a relatively large dot close to the top-right corner, has a GDP per capita of 53,015 international dollars and 16.43 tonnes of \(\ce{CO2}\) emissions per capita.
    • Qatar is closest to the top-right corner, with a tiny dot representing a GDP per capita of 156,029 international dollars and 41.23 tonnes of \(\ce{CO2}\) emissions per capita.

    [Return to Figure 9.2]

    Figure 9.3 long description: Cartogram of carbon emissions with many cities labelled. The caption says, “100 companies are responsible for most of the world’s greenhouse gas emissions. These are the names and locations of their executives. Country sizes depict cumulative \(\ce{CO2}\) emissions from 1850–2011.” Beneath each labelled city are the names and companies of the executives who live there.

    The cities with the most executives from top-polluting companies are Houston (seven), Jakarta (five), Calgary (four), Moscow (four), Beijing (four), and Johannesburg-Pretoria (three). Many of the companies whose executives are shown on the map produce oil or energy. Executives are depicted in every corner of the world. Some of the most distorted countries are the United States, Germany, the United Kingdom, South Africa, Japan, and South Korea.

    [Return to Figure 9.3]

    Figure 9.4 long description: Breakdown of the sources of greenhouse gas emissions since 1751.

    This chart shows that 52 per cent of industrial green house gases emitted since 1751 have come from 100 producers of fossil fuels. Out of those 100 top producers, 41 are public investor–owned, 16 are private investor–owned, 36 are state-owned, and seven are state producers. Those 100 entities have generated 923 billion tonnes of \(\ce{CO2}\) equivalents.

    The other 48 per cent of industrial greenhouse gases emitted since 1751 have come from the rest of the world, totalling 852 billion tonnes of \(\ce{CO2}\) equivalents. Just a sliver of that 48 per cent (perhaps 5 per cent) of emissions have come from the poorer half of humanity.

    [Return to Figure 9.4]

    Figure 9.5 long description: Bar graph depicting the emissions savings of certain personal choices, measured in tonnes of carbon dioxide equivalents (t\(\ce{CO2}\)e) per year. Actions are coded as high impact (saving more than 0.8 t\(\ce{CO2}\)e), moderate impact (saving 0.2 to 0.8 t\(\ce{CO2}\)e), and low impact (saving less than 0.2 t\(\ce{CO2}\)e). Where information is available, the average impact of personal choices in particular countries is indicated.

    The action with the highest impact by far is choosing to have one fewer child, which saves an average of 58.6 t\(\ce{CO2}\)e per year and an average of 117.7 t\(\ce{CO2}\)e per year in the United States. Other high-impact personal choices include the choice to live car free, avoid one transatlantic flight, buy green energy, buy a more efficient car, switch from an electric car to a car-free lifestyle, and to adopt a plant-based diet, all of which save between 0.8 and 2.4 t\(\ce{CO2}\)e per year on average.

    Some actions have greater impact in particular countries. For example, living car free saves an average of 3.08 and 3.04 t\(\ce{CO2}\)e per year in the United States and Australia, respectively, compared to 2.4 t\(\ce{CO2}\)e per year on average around the world. Buying green energy in Canada and Australia saves an average of 2.51 and 2.2 t\(\ce{CO2}\)e per year, respectively, compared to 1.5 t\(\ce{CO2}\)e per year on average around the world.

    Moderate-impact actions include the choice to replace a gasoline-powered car with a hybrid, wash clothes in cold water, recycle, and hang clothes to dry, all of which save between 0.2 and 0.8 t\(\ce{CO2}\)e per year on average.

    The one low-impact action depicted is the choice to upgrade light bulbs, which saves an average of 0.10 t\(\ce{CO2}\)e per year.

    [Return to Figure 9.5]

    .Footnote

    1. The major greenhouse gases include water vapour, carbon dioxide, methane, nitrous oxide and ozone. Problematic is not their natural production (which has long kept our planet hospitable) but their excessive, anthropogenic emission in recent decades, including synthetic GHGs such as chlorofluorocarbons and hydrofluorocarbons.
    2. (See Climate change has caused an 89% decrease in new coral in the Great Barrier Reef, study finds.)
    3. The costs of work disruption and material damage, as well as mortality costs (loss of earnings) have been computed on the basis of a conservative approach wherein it has been assumed that flooding would be limited to five days in a year and also that the frequency of such extreme occurrences shall be once every five years. The computation has been limited to the year 2050. It also conservatively assumes that the population in these areas will not change, though it would change depending upon the local government policy of development relevant to the time frame up to 2050. Population figures have been taken from the census for locations shown in Figure 9.1 based on the area and density of population.
    4. See Footnote #3.
    5. See Footnote #3.
    6. Increase in the incidence of malaria, diarrhoea and leptospirosis would result in loss of income due to non-working days and deaths. Losses have been computed using Disability-adjusted life years (DALYs) for all the major illnesses likely to impact the population. Incidence of all these illnessses will increase steadily with increase in income loss; a sharp increase is likely from 2045 to 2055. By 2050 the cumulative income loss due to malaria, diarrhoea and leptospirosis, calculated on the basis of DALYs will be 155 597 and 2401 crores [1 crore = 100,000], respectively. The calculation of DALYs is based on the World Health Organization (WHO) guidelines 8 and 9, and income levels prevalent for Mumbai.
    7. Due to sea-level rise there will be loss of coastal area and ingress of sea water. Assuming that sea water penetrates 200 m inland, calculations have been made showing the monetary loss due to buildings getting affected in the region near the shore. The current loss has been computed on the basis of the present value of buildings. This is based on the assumption that buildings along the coastline located within 200 m from the shore will get affected due to rise in the sea level and ingress of sea water.
    8. Calculations are based on Tourism Statistics of India10. Future costs have been calculated using the average gross domestic product (GDP) growth rate of India. It also takes the current rates of 6% and 13% increase respectively in domestic and foreign tourism per year into account.
    9. In the context of environmental challenges to social-ecological systems, resilience is defined by the Stockholm Resilience Centre as “the capacity of a system, be it an individual, a forest, a city or an economy, to deal with change and continue to develop. It is about how humans and nature can use shocks and disturbances like a financial crisis or climate change to spur renewal and innovative thinking.” (https://www.stockholmresilience.org/research/research-news/2015-02-19-what-is-resilience.html accessed 2 Aug 2019; See also Simonsen et al., 2014)
    10. See also Giroux, H.A., 2010. “The Media and Hurricane Katrina: Floating Bodies and Disposable Populations”, pp. 29-51.
    11. See Ram M., D. Bogdanov, A. Aghahosseini, A.S. Oyewo, A. Gulagi, M. Child, H-J. Fell & C. Breyer. Global Energy System Based on 100% Renewable Energy – Power Sector. Study by Lappeenranta University of Technology and Energy Watch Group, Lappeenranta, Berlin, November 2017.
    12. See Jacobson, M.Z., M.A. Delucchi, Z.A. Bauer, S.C. Goodman, W.E. Chapman, M.A. Cameron, … & J.R. Erwin. 2017. 100% clean and renewable wind, water, and sunlight all-sector energy roadmaps for 139 countries of the world. Joule 1(1): 108-121.
    13. See About fossil free divestment by the 350.org website.
    14. See and download the US Congress resolution Recognizing the duty of the Federal Government to create a Green New Deal.

    9.6: Resources and References is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by LibreTexts.

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