Beginner Topic 1046 of 1102 Biochemistry, Environment & Industry

Global Warming

Rising average temperatures due to increased greenhouse gas emissions.

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In-depth explanation of Global Warming

Global warming is the long-term rise in the average surface temperature of the Earth caused by increased concentrations of greenhouse gases. Global average surface temperature has risen by more than 1 C since the late nineteenth century, mainly because of CO2 released from burning fossil fuels, cement production and land-use change. The warming is driving sea level rise, more frequent extreme weather, glacier retreat and shifts in ecosystems. Climate scientists use carbon budgets to estimate how much more CO2 can be emitted while staying within a given temperature limit. The Paris Agreement aims to hold warming well below 2 C and to pursue efforts toward 1.5 C.

Going deeper: Global Warming

Key ideas: Average surface temperature has risen about 1.1 to 1.2 C since pre-industrial times, driven by CO2 rising from about 280 to over 420 ppm from fossil fuel burning, deforestation and cement. Consequences include sea level rise from thermal expansion plus ice melt, ocean acidification (CO2 plus H2O gives H2CO3) and extreme weather.

Common mistakes and connections: Students confuse weather with climate, or claim a cold day disproves warming. Ocean acidification is a separate effect of the same CO2. Feedbacks (ice-albedo, water vapor) amplify. Paris Agreement aims to hold warming well below 2 C. Links to carbon cycle, greenhouse gases and renewable energy.

Visualization of Global Warming

Atmospheric CO2 has risen from about 280 ppm before industrialisation to over 420 ppm, driven mainly by fossil fuel burning, causing global warming. The interactive lesson shows this as a live animation or chart.

Worked example and use case

Atmospheric CO2 rose from about 280 ppm before industrialisation to over 420 ppm today.

Frequently asked questions about Global Warming

What is Global Warming?

Rising average temperatures due to increased greenhouse gas emissions.

Is Global Warming a beginner, intermediate or advanced topic?

Global Warming is a beginner topic in Biochemistry, Environment & Industry. It needs no earlier chemistry lessons and is a good starting point.

What should I learn before Global Warming?

Study these earlier topics in Biochemistry, Environment & Industry first: Biomaterials, Atmospheric Composition, Greenhouse Effect.

What comes after Global Warming?

The next topics in Biochemistry, Environment & Industry are Greenhouse Gases and Carbon Cycle.

Can I practise Global Warming with quizzes?

Yes. The interactive lesson includes a self-check question on Global Warming, and the Biochemistry, Environment & Industry quiz draws on every topic in this area.

Where Global Warming fits in Biochemistry, Environment & Industry

Global Warming is topic 71 of 127 in Biochemistry, Environment & Industry.