GLOBAL ENVIRONMENTAL CHALLENGES 2

Industrial Revolution

Start around AD 1760 with mechanized production and fossil fuel use

James Watt steam engine (1775)

Converted coal into kinetic energy reliably

Coal as an energy source

Energy-dense, transportable, and accessible fuel

Energy bottleneck

Limitation on economic growth before fossil fuels

Socio-economic transformation

Machines replaced craftsmen; rural–urban migration increased

Urbanization

Growth of cities driven by industrial employment

Increase in productivity

Specialization and mass production created economies of scale

International trade expansion as a result of increase in productivity

Industrial production required raw materials and markets

Transportation revolution 

Steam engines reduced cost and time of transport

Economic globalization (19th century)

Market-seeking expansion driven by industrial production

Imperialism and colonization 

Military and economic domination enabled by fossil fuels

Uneven development 

Rich countries become richer while poor countries stagnate

Consumerism

Post-WWII economic system driven by consumption

Energy consumption per capita

Increases dramatically from agricultural to industrial societies

Industrial phase energy use

~3000 W per person

Technological phase energy use   

~9000 W per person

Uneven global energy consumption

Large disparities between countries

Burning fossil fuels and CO₂

Rapid increase since 1950

Anthropocene 

New geological epoch dominated by human influence

Holocene 

Previous geological epoch of relative climate stability

Human activity as geological force

Humans alter biogeochemical cycles and climate

Golden spike (GSSP)

Global stratigraphic marker for defining epochs

Megafauna extinction (50,000-10,000 years ago)

Early human-driven ecological impact. Half of all large-bodied mamals worldwide were lost

Agricultural revolution impacts

Land conversion, species extinction, CO₂ and CH₄ increase. Origin of farming 11,000 years ago, extensive farming 8,000 years ago, rice production 5,000 years ago

Industrial Revolution markers

CO₂, CH₄, NO₃ increases

Nuclear weapon detonation

Radiocarbon (¹⁴C) peak as global marker

Planetary boundaries

Safe operating limits for Earth systems

Global sustainability implication

Fossil fuels are not the only issue; globalization has side effects

Economic globalization

Process of increasing economic integration between countries, leading to the emergence of a global marketplace or a single world market

Indicators of globalization

TNCs, trade, FDI, capital flows, NICs, global markets

Transport and telecommunication advances

Key driver of globalization

Fordism

Mass production of standardized goods using assembly lines

Economies of scale

cost reduction through large-scale production

Living wage concept

Higher wages allow workers to consume products they make

Post-Fordism

Flexible, small-batch, diversified production

Economies of scope

cost advantages from producing diverse products

Rise of service sector

Key feature of post-Fordist economies

Feminization of workforce

Increased participation of women in paid labor. Post-Fordism

Global sourcing

TNC strategy of sourcing inputs worldwide

Export Processing Zones in developing countries

Low-wage, low-regulation production zones

Deindustrialization 

Decline of manufacturing in developed countries

Core–periphery labor structure

Secure, skilled core workers vs insecure peripheral workers

Job informalization

Temporary, insecure, benefit-free employment

World cities

Command and control centers of global capitalism

Urban decline of old industrial cities

Result of deindustrialization

Peripheral capitalism

Developing countries integrated as subordinate producers

Technological modernization

Mechanization reduces labor demand

Environmental impact shift

From production-related to consumption-related problems

Consumerism

global demand driving resource depletion

Direct CO₂ emissions

Burning fossil fuels and cement production

Indirect CO₂ emissions

Deforestation and soil organic matter decay

Annual per capita CO₂ emission (2005)

5.3 tons per person

Mauna Loa CO₂ record

long-term atmospheric CO₂ monitoring

Pre-industrial CO₂ level

~280 ppm

Modern CO₂ level

  Over 400 ppm

Radiative forcing

Change in Earth’s energy balance due to emissions

Greenhouse effect

Heat trapping by gases such as CO₂ and CH₄

Anthropogenic forcing

Dominant driver of recent warming

Short-lived aerosols

Can cause cooling but with uncertainty

Natural climate drivers

Solar variation, volcanism, ocean circulation

Milankovitch cycles

orbital variations influencing long-term climate

PDO (Pacific Decadal Oscillation)

Ocean-atmosphere climate variability

AMO (Atlantic Multidecadal Oscillation) 

Long-term ocean temperature cycle

Air pollutants from fossil fuels 

CO (poisonous), SO₂ (extremely corrosive and suffocating), NOx (acidic), CO2 (GHG)

Media framing of climate change

Oversimplifies fossil fuel–warming relationship

Regional warming and cooling

Global warming is not spatially uniform

Sustainability framework 

Interactions between food, society, economy, energy, climate, and politics

Aggregation problem

1 + 1 may not equal 2 at global scale

Population-level factors

Determinants of overall risk, not individual behavior

Climate change primary effects

Energy balance and heat redistribution

Secondary climate effects

Hydrological and atmospheric circulation changes

Climate conflict hypothesis

Environmental stress contributing to conflict (e.g. Darfur)

What is “economic man”?

An idealized human who acts rationally, has complete information, and seeks to maximize personal utility or satisfaction.

Why is the concept of economic man problematic for sustainability?

It ignores environmental limits, social values, and long‑term collective outcomes.

What does “increasing social complexity” refer to?

Growing interconnectedness of economic, social, political, and ecological systems, making governance and solutions harder.

What are “more rigid boundaries” in sustainability discussions?

Institutional, political, and disciplinary divisions that prevent integrated solutions.

What is the “empty world” worldview?

A worldview from the early Industrial Revolution that assumed abundant natural resources and low human impact.

What limits did humans face in the “empty world”?

Limited access to infrastructure and consumer goods.

What economic belief is associated with the “empty world” worldview?

Belief in unlimited economic growth.

What is the “full world” worldview?

A worldview recognizing that the planet is full of humans and built infrastructure, with limited natural resources.

What limits do humans face in a “full world”?

Resource constraints (e.g. peak oil, water scarcity) and sink constraints (e.g. climate change).

What are “sink constraints”?

Limits on the environment’s capacity to absorb waste and pollution.

How do market institutions act as a roadblock to sustainability?

They prioritize economic growth and private goods, leading to biophysical crises.

Why are international trade institutions a sustainability problem?

They are competitive rather than cooperative, discouraging global environmental solutions.

How do institutions governing knowledge hinder sustainability?

By privatizing knowledge and promoting consumerism and materialism.

Why is technology described as increasingly unsustainable?

It depends heavily on non‑renewable energy and raw materials.

How does technological complexity increase system vulnerability?

Complex systems require more resources and energy, making them brittle and prone to collapse.

What geopolitical risks are linked to technology dependence?

Resource conflicts, unstable international relations, and economic insecurity.

What does the first law of thermodynamics state?

Energy cannot be created or destroyed—only transformed.

Why does the first law of thermodynamics challenge sustainability?

It means infinite economic growth is physically impossible.

Is there a feasible alternative energy system that can sustain current global economic growth?

No, according to current technological limits.

What is a synergy between SDGs?

When progress in one SDG supports progress in another.

What is a trade‑off between SDGs?

When progress in one SDG undermines progress in another.

What was the main bottleneck in the pre‑industrial era?

Energy deficiency caused by low technology levels.

What is the main bottleneck in the industrial era?

Energy deficiency caused by increased production and consumption.

What may be the main bottleneck in the future?

Climate change and environmental limits.

Why are food, energy, economy, politics, and climate interconnected?

Changes in one system affect all others, creating complex sustainability challenges.