What is global warming?
What is global warming?

Global warming is the gradual rise in the Earth's average surface temperature. It is caused by increasing levels of greenhouse gases in the atmosphere, especially carbon dioxide and methane.
Step-by-step lessons covering AQA GCSE Biology 7.3.5 Global warming for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Start with the foundational topics and build up to the higher-tier material.