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Environmental systems and societies (ESS)

What Is Food Security?

Learn the IB ESS definition of food security, its physical and economic dimensions, major threats, a named example, and how to answer exam questions.

6.1 Introduction to the atmosphere

How Do Greenhouse Gases and Aerosols Absorb and Re-Emit Infrared Radiation?

Learn how greenhouse gases and aerosols interact with infrared radiation, alter Earth’s energy balance, and affect climate in IB ESS exams at SL and HL.

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Every question IB students actually ask.

Environmental systems and societies (ESS)

What Is Food Security?

How Do Greenhouse Gases and Aerosols Absorb and Re-Emit Infrared Radiation?

MYP Subjects

Environmental systems and societies (ESS)

What Is Food Security?

How Do Greenhouse Gases and Aerosols Absorb and Re-Emit Infrared Radiation?

Is Harvesting Wild Species More Sustainable Than Farming Them?

How Does Differential Heating Create the Tricellular Model of Atmospheric Circulation?

How Is Global Warming Disrupting the Natural Glacial-Interglacial Cycle?

What Is the Atmosphere and How Is It Structured?

How Does Gravity Hold the Atmosphere Close to Earth's Surface?

What Are Milankovitch Cycles and How Do They Affect Solar Radiation Reaching Earth?

What Is the Natural Greenhouse Effect and Why Does It Keep Earth Warm?

How Did the Evolution of Life Change the Composition of Earth's Atmosphere?

How Has the Enhanced Greenhouse Effect Changed Global Climate?

How Have Anthropogenic Emissions Increased Atmospheric CO2 Concentrations?

How Does Climate Change Impact Human Societies Economically and Socially?

How Do Ice Cores and Tree Rings Provide Evidence of Past Climate Change?

How Does Climate Change Impact Ecosystems at Different Scales?

Has Earth Already Crossed the Planetary Boundary for Climate Change?

How Do Weather Stations, Satellites, and Radar Collect Climate Data?

What's the Difference Between Climate Change Mitigation and Adaptation?

Why Is Global Cooperation Needed to Avoid Catastrophic Climate Change?

How Do Global Climate Models Predict Future Climate Scenarios?

What Is Decarbonization of the Economy?

What Is a Climate Tipping Cascade?

What Technologies Are Being Developed to Mitigate Climate Change?

What Role Does the UN Play in Global Climate Strategy (UNFCCC; COP)?