IB - 4.4 - Ecology - Climate Change - PowerPoint Presentation

IB - 4.4 - Ecology - Climate Change - PowerPoint Presentation
IB - 4.4 - Ecology - Climate Change - PowerPoint Presentation
IB - 4.4 - Ecology - Climate Change - PowerPoint Presentation
IB - 4.4 - Ecology - Climate Change - PowerPoint Presentation
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1.35 MB   |   15 pages

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IB Biology
Ecology
4.4 – Climate Change Presentation

I designed this IB Biology PowerPoint presentation to correspond to the course companion, 2014 Edition Biology, written by Andew Allott and David Mindorff. The content in the presentation is also in alignment with the new 2016 exam. According to the IB Biology Guide, the following are addressed in this presentation:

Nature of Science topic:
• Assessing claims—assessment of the claims that human activities are producing climate change.

Understandings:
• Carbon dioxide and water vapour are the most significant greenhouse gases.
• Other gases including methane and nitrogen oxides have less impact.
• The impact of a gas depends on its ability to absorb long wave radiation as well as on its concentration in the atmosphere.
• The warmed Earth emits longer wavelength radiation (heat).
• Longer wave radiation is absorbed by greenhouse gases that retain the heat in the atmosphere.
• Global temperatures and climate patterns are influenced by concentrations of greenhouse gases.
• There is a correlation between rising atmospheric concentrations of carbon dioxide since the start of the industrial revolution 200 years ago and average global temperatures.
• Recent increases in atmospheric carbon dioxide are largely due to increases in the combustion of fossilized organic matter.
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15
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IB - 4.4 - Ecology - Climate Change - PowerPoint Presentation
IB - 4.4 - Ecology - Climate Change - PowerPoint Presentation
IB - 4.4 - Ecology - Climate Change - PowerPoint Presentation
IB - 4.4 - Ecology - Climate Change - PowerPoint Presentation