11: The Geosphere and a Green Earth
- Page ID
- 285354
\( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \)
\( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)
\( \newcommand{\dsum}{\displaystyle\sum\limits} \)
\( \newcommand{\dint}{\displaystyle\int\limits} \)
\( \newcommand{\dlim}{\displaystyle\lim\limits} \)
\( \newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\)
( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\)
\( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\)
\( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\)
\( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\)
\( \newcommand{\Span}{\mathrm{span}}\)
\( \newcommand{\id}{\mathrm{id}}\)
\( \newcommand{\Span}{\mathrm{span}}\)
\( \newcommand{\kernel}{\mathrm{null}\,}\)
\( \newcommand{\range}{\mathrm{range}\,}\)
\( \newcommand{\RealPart}{\mathrm{Re}}\)
\( \newcommand{\ImaginaryPart}{\mathrm{Im}}\)
\( \newcommand{\Argument}{\mathrm{Arg}}\)
\( \newcommand{\norm}[1]{\| #1 \|}\)
\( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\)
\( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\AA}{\unicode[.8,0]{x212B}}\)
\( \newcommand{\vectorA}[1]{\vec{#1}} % arrow\)
\( \newcommand{\vectorAt}[1]{\vec{\text{#1}}} % arrow\)
\( \newcommand{\vectorB}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \)
\( \newcommand{\vectorC}[1]{\textbf{#1}} \)
\( \newcommand{\vectorD}[1]{\overrightarrow{#1}} \)
\( \newcommand{\vectorDt}[1]{\overrightarrow{\text{#1}}} \)
\( \newcommand{\vectE}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash{\mathbf {#1}}}} \)
\( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \)
\(\newcommand{\longvect}{\overrightarrow}\)
\( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)
\(\newcommand{\avec}{\mathbf a}\) \(\newcommand{\bvec}{\mathbf b}\) \(\newcommand{\cvec}{\mathbf c}\) \(\newcommand{\dvec}{\mathbf d}\) \(\newcommand{\dtil}{\widetilde{\mathbf d}}\) \(\newcommand{\evec}{\mathbf e}\) \(\newcommand{\fvec}{\mathbf f}\) \(\newcommand{\nvec}{\mathbf n}\) \(\newcommand{\pvec}{\mathbf p}\) \(\newcommand{\qvec}{\mathbf q}\) \(\newcommand{\svec}{\mathbf s}\) \(\newcommand{\tvec}{\mathbf t}\) \(\newcommand{\uvec}{\mathbf u}\) \(\newcommand{\vvec}{\mathbf v}\) \(\newcommand{\wvec}{\mathbf w}\) \(\newcommand{\xvec}{\mathbf x}\) \(\newcommand{\yvec}{\mathbf y}\) \(\newcommand{\zvec}{\mathbf z}\) \(\newcommand{\rvec}{\mathbf r}\) \(\newcommand{\mvec}{\mathbf m}\) \(\newcommand{\zerovec}{\mathbf 0}\) \(\newcommand{\onevec}{\mathbf 1}\) \(\newcommand{\real}{\mathbb R}\) \(\newcommand{\twovec}[2]{\left[\begin{array}{r}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\ctwovec}[2]{\left[\begin{array}{c}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\threevec}[3]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\cthreevec}[3]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\fourvec}[4]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\cfourvec}[4]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\fivevec}[5]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\cfivevec}[5]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\mattwo}[4]{\left[\begin{array}{rr}#1 \amp #2 \\ #3 \amp #4 \\ \end{array}\right]}\) \(\newcommand{\laspan}[1]{\text{Span}\{#1\}}\) \(\newcommand{\bcal}{\cal B}\) \(\newcommand{\ccal}{\cal C}\) \(\newcommand{\scal}{\cal S}\) \(\newcommand{\wcal}{\cal W}\) \(\newcommand{\ecal}{\cal E}\) \(\newcommand{\coords}[2]{\left\{#1\right\}_{#2}}\) \(\newcommand{\gray}[1]{\color{gray}{#1}}\) \(\newcommand{\lgray}[1]{\color{lightgray}{#1}}\) \(\newcommand{\rank}{\operatorname{rank}}\) \(\newcommand{\row}{\text{Row}}\) \(\newcommand{\col}{\text{Col}}\) \(\renewcommand{\row}{\text{Row}}\) \(\newcommand{\nul}{\text{Nul}}\) \(\newcommand{\var}{\text{Var}}\) \(\newcommand{\corr}{\text{corr}}\) \(\newcommand{\len}[1]{\left|#1\right|}\) \(\newcommand{\bbar}{\overline{\bvec}}\) \(\newcommand{\bhat}{\widehat{\bvec}}\) \(\newcommand{\bperp}{\bvec^\perp}\) \(\newcommand{\xhat}{\widehat{\xvec}}\) \(\newcommand{\vhat}{\widehat{\vvec}}\) \(\newcommand{\uhat}{\widehat{\uvec}}\) \(\newcommand{\what}{\widehat{\wvec}}\) \(\newcommand{\Sighat}{\widehat{\Sigma}}\) \(\newcommand{\lt}{<}\) \(\newcommand{\gt}{>}\) \(\newcommand{\amp}{&}\) \(\definecolor{fillinmathshade}{gray}{0.9}\)“The 2010 explosion, fire, and subsequent massive leakage of crude oil at the site of the Deepwater Horizon oil well in the Gulf of Mexico illustrates the hazards of probing deep into the geosphere without proper safeguards against the kinds of accidents that can occur at great depths where high temperatures and extreme pressures present unique challenges to technology.”
- 11.1: Probing Deep into the Geosphere - A Well Too Far?
- This page discusses BP's record-setting deep oil well in 2009, part of the Tiber Prospect, which holds significant oil reserves. It highlights the tragic 2010 Deepwater Horizon explosion, resulting in 11 deaths and an extensive oil spill that caused major environmental damage and financial losses for BP. The incident raised serious safety concerns regarding deep-sea drilling practices.
- 11.2: The Nature of the Geosphere
- This page discusses the geosphere, which includes Earth's rocks and soils essential for industry and food. It highlights environmental risks from human activities, like the Deepwater Horizon incident. The geosphere's interaction with other systems affects water cycles and agriculture sustainability. Soil health is crucial for food production but vulnerable to damage, potentially causing shortages.
- 11.3: The Geosphere as a Source of Natural Capital
- This page discusses the geosphere's role in resource provision and waste disposal, highlighting concerns over sustainable extraction of rare earth elements and lithium, critical for technology and energy. China's dominance in the rare earth market raises global supply worries, while Afghanistan's mineral wealth offers a potential economic shift from opium reliance. Additionally, the U.S. seeks to rejuvenate its rare earth production in California to enhance resource security.
- 11.4: Environmental Hazards of the Geosphere
- This page discusses the 2010 eruption of Iceland's Eyjafjallajokull volcano, its massive disruption to European air travel, and the broader impact of natural disasters like earthquakes and landslides. It highlights the dual role of human activities in either mitigating or exacerbating geological phenomena. Additionally, it covers various geological processes such as landslides, creep, permafrost, expansive clays, and sinkholes, detailing their causes and effects on infrastructure.
- 11.5: Water on and in the Geosphere
- This page discusses the geosphere's role in containing the majority of the world's fresh water and the pollution risks it faces, particularly in aquifers. It highlights the erosion caused by rivers and the dangers of flooding, emphasizing the inadequacy of traditional flood control methods like levees and dams.
- 11.6: Anthrospheric Influences on the Geosphere
- This page discusses how human activities, aided by advanced technology, alter Earth's surfaces, causing pollution, habitat destruction, and land subsidence. While surface mining leaves visible scars, improved management practices are aiding revegetation. In contrast, underground mining poses severe environmental risks such as subsidence and water pollution. Efforts in green chemistry are being made to mitigate these detrimental effects.
- 11.7: The Geosphere as a Waste Repository
- This page discusses the environmental challenges posed by waste solids from mineral processing, industrial activities, and municipal garbage. It emphasizes the importance of sanitary landfills in managing municipal refuse while minimizing methane emissions and leachate contamination. The page highlights the need for secure landfills for hazardous waste and advocates for strategies like industrial ecology, recycling, and green chemistry to reduce hazardous material generation and pollution risks.
- 11.8: Have You Thanked a Clod Today?
- This page emphasizes soil's essential role in plant growth and human survival, detailing its composition and importance in agriculture. Healthy soil sustains biodiversity, retains moisture and nutrients, and supports plant roots. Soil degradation threatens food security and can lead to poverty and malnutrition, highlighting the necessity for sustainable agricultural practices.
- 11.9: Plant Nutrients and Fertilizers in Soil
- This page discusses the composition of plant biomass, highlighting that it primarily contains carbon, hydrogen, and oxygen, alongside essential nutrients like nitrogen, phosphorus, and potassium. It notes the impact of soil acidity on productivity and the role of lime in neutralizing it. The nitrogen cycle's importance is emphasized, alongside the necessity of the Haber process for ammonia.
- 11.10: Soil and Plants Related To Wastes and Pollutants
- This page discusses the role of soil in storing pollutants and filtering out atmospheric contaminants. It highlights the impact of contaminants from leaded gasoline, hazardous waste, and pesticides on soil health. The page notes that substances like PCBs can be tracked over time, reflecting production cycles and environmental influences.
- 11.11: Soil Loss - Desertification and Deforestation
- This page discusses soil erosion due to cultivation in the U.S., highlighting the significant loss of topsoil and the prevalence of water erosion, particularly near major rivers. It underscores the global challenge of desertification driven by unsustainable practices and emphasizes the importance of sustainable land management.
- Literature Cited and Supplementary References
- This page includes a comprehensive list of literature and references focused on environmental management, soil science, geology, and natural hazards. Notable works by Lehmann and Joseph on biochar are highlighted, along with texts on soil conservation and sustainable management. The citations reflect a diverse range of editions and subjects, emphasizing the connections among environment, geology, and soil science.
- Questions and Problems
- This page explores the interplay between the geosphere, biosphere, and human influence on the environment through various questions. It covers topics such as the contributions of the geosphere to the biosphere, differences between rocks and minerals, igneous rock processes, and mineral chemistry.