Chemistry of the Atmosphere: Climate Change and the Greenhouse Effect
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How have human activities led to an increase in greenhouse gases?
Carbon dioxide - combustion and deforestation Methane - increased farming and decomposition in landfills
What are some potential effects of global climate change?
• sea level rise which may cause flooding and increased coastal erosion • more frequent and severe storms • changes in rainfall patterns • temperature and water stress for humans and wildlife • changes in the food-producing capacity of some regions • changes to the distribution of wildlife species
What is a carbon footprint?
The total amount of carbon dioxide and other greenhouse gases emitted over the full life cycle of a product, service or event.
What actions can be taken to reduce a carbon footprint?
• increased use of alternative energy supplies • energy conservation • carbon capture and storage (where CO2 is trapped in solvents and stored underground • carbon taxes and licences • carbon off-setting including through stree planting • carbon neutrality
What are the problems of reducing the carbon footprint?
• scientific disagreement over causes and consequences of globally climate change • lack of public information and education • many people dont want to change their lifestyles • economic considerations, it will cost money • incomplete international cooperation