Global warming and greenhouse gases
{"Image DocumentName": "Global warming and greenhouse gases", "Image ImageDescription": "One of the greatest threats caused by air pollution is global warming. Global warming is caused by a build-up of greenhouses gases, which leads to an increase in the Earth\u2019s temperature. A greenhouse gas is an atmospheric gas that absorbs infrared light. Key greenhouses gases include: carbon dioxide (CO2) Teacher notes. See the \u2018Climate Change\u2019 chemistry presentation for more information on greenhouse gases, the greenhouse effect and global warming. methane (CH4) water vapour (H2O) nitrous oxide (N2O)", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}