Climate and pollution learning hub
Explore the science connecting greenhouse gases, global warming, extreme weather and environmental pollution. This hub brings together clear guides on climate impacts, urban risks, air and water pollution, plastics, e-waste and the environmental footprint of emerging technologies.
Start with climate-change fundamentals
Global warming describes the long-term rise in Earth’s average temperature. Climate change is broader and includes changes in rainfall, droughts, floods, storms, sea level, oceans, ice and ecosystems.
Climate Change and Global Warming
Begin with an organized overview of greenhouse gases, warming, climate impacts and the major approaches to mitigation and adaptation.
Global Warming vs. Climate Change
Understand why the terms are closely connected but do not mean exactly the same thing.
Greenhouse Gases and Global Warming
Learn how carbon dioxide, methane and other heat-trapping gases alter Earth’s energy balance.
Human Impact on the Carbon Cycle
Examine how fossil-fuel use, deforestation and land-use change alter carbon flows and atmospheric carbon dioxide.
Earth’s Rising Temperature
Review the principal drivers and environmental consequences of the observed rise in global temperature.
Is Black Carbon a Greenhouse Gas?
Learn how black carbon differs from conventional greenhouse gases while still contributing to atmospheric warming.
Understand climate-change impacts
Climate change affects ecosystems, biodiversity, food production, water resources, infrastructure and human well-being. The severity of these effects depends on exposure, vulnerability and the capacity to adapt.
Effects of Climate Change
Explore rising temperatures, heatwaves, melting ice, sea-level rise, droughts, floods, wildfires and ecosystem disruption.
Climate Change and Biodiversity
See how warming and altered rainfall affect habitats, migration, breeding cycles, species ranges and extinction risk.
Climate Change and Food Supply
Understand how heat, changing rainfall, droughts, floods and shifting pests can affect agriculture and food security.
Impacts on Agriculture and Food Production
Examine crop stress, water constraints, extreme weather and the challenges facing agricultural production.
Climate Change and Wildfire Frequency
Learn how heat, dryness, vegetation conditions and fire weather influence wildfire risk and severity.
Environmental Change and Human Well-Being
Connect changing environmental conditions with health, livelihoods, water, food and community resilience.
Cities, heat, flooding and water scarcity
Urban areas concentrate people, infrastructure and environmental risks. Paved surfaces, limited vegetation, groundwater pressure and development in wetlands or floodplains can intensify several climate hazards at once.
Are Cities Becoming Unlivable?
Examine how extreme heat, urban flooding and water scarcity interact with land use, infrastructure, energy demand and social inequality. The article also explains why climate adaptation depends on planning and public investment.
- Urban heat-island effects
- Flash flooding and drainage pressure
- Groundwater depletion and water scarcity
- Wetlands and floodplain development
- Climate-resilient urban planning
Explore major forms of environmental pollution
Pollution occurs when substances or forms of energy enter the environment at levels that harm organisms, ecosystems or human health. Sources, pathways and effects differ across air, water, soil and marine environments.
Causes and Effects of Air Pollution
Review major emission sources, common pollutants and effects on health, ecosystems, crops, climate and economies.
Bioindicators of Air Pollution
Learn how lichens, plants and other organisms can reveal the presence and ecological effects of air contaminants.
Indoor Air Pollution
Understand indoor pollutant sources, associated health risks and practical approaches to prevention and ventilation.
Smog: Causes, Effects and Solutions
Understand how nitrogen oxides, volatile organic compounds and other pollutants contribute to smog formation.
Water Pollution and Biodiversity
See how contaminants, nutrient enrichment and oxygen depletion affect aquatic organisms and ecological communities.
Marine Pollution
Review chemical discharges, plastics, oil, nutrient runoff and other pressures affecting marine ecosystems.
Nitrogen Pollution
Learn how excess reactive nitrogen contributes to smog, eutrophication, ecosystem damage and water contamination.
Effects of Acid Rain
Explore how sulfur dioxide and nitrogen oxides contribute to acid deposition and damage soils, waters, forests and structures.
Sound Pollution
Examine the effects of excessive noise on people, wildlife behavior, communication, migration and reproduction.
Plastic pollution, waste and e-waste
Material production and disposal create environmental pressures throughout product life cycles. Plastics persist and fragment in the environment, while discarded electronics contain both valuable resources and hazardous substances.
What Is Plastic Pollution?
Begin with the sources, forms and environmental consequences of plastics released into terrestrial and aquatic systems.
How Plastic Is Choking Our Oceans
Explore how discarded plastics and fishing materials affect marine wildlife, habitats and coastal environments.
Microplastics in the Human Body
Review the emerging evidence on exposure pathways, detection and remaining uncertainties around health effects.
E-Waste Management in India
Review disposal responsibilities, recycling pathways and the importance of using authorized e-waste systems.
E-Waste Recycling Technologies
Learn how dismantling, separation, recovery and refining can return metals and other materials to productive use.
Microbial Recovery of Metals
See how bacterial and fungal processes may assist the recovery of metals from discarded electronic materials.
AI, data centers and digital environmental impacts
Digital services depend on physical infrastructure. Servers, cooling systems, electricity generation, chip production and device replacement connect artificial intelligence and online activity to energy, water, emissions and e-waste.
How Much Water Does AI Use?
Understand direct water use for data-center cooling, indirect water use associated with electricity generation and the water required to manufacture advanced computer chips.
- Data-center cooling
- Electricity-related water consumption
- Semiconductor manufacturing
- Location and cooling-system differences
- Responsible interpretation of estimates
Environmental Impact of Artificial Intelligence
Review both the environmental applications of AI and the energy, resource and waste risks associated with its infrastructure.
AI for Combating Climate Change
Explore how artificial intelligence can support forecasting, climate modeling, energy management and environmental monitoring.
Reducing Your Digital Carbon Footprint
Learn how device life, data use, streaming, storage and online behavior contribute to digital environmental impacts.
A suggested climate and pollution learning path
Follow these stages to build a structured understanding for coursework, assignments and environmental science examinations.
Learn climate foundations
Begin with greenhouse gases, the carbon cycle, global warming and climate change.
Study impacts and adaptation
Connect climate change with ecosystems, cities, agriculture, food, water and human well-being.
Compare pollution types
Review sources, pathways and effects across air, water, marine, nutrient and noise pollution.
Examine emerging pressures
Study plastic pollution, e-waste, data centers and the environmental footprint of AI.
Useful climate and pollution resources
Use these guides for revision, wider reading and environmental science study.
