How natural and human processes affect the global energy balance
The atmospheric system, including the natural greenhouse effect and energy balance (incoming shortwave radiation and outgoing longwave radiation)
Changes in the global energy balance, and the role of feedback loops, resulting from:
solar radiation variations, including global dimming due to volcanic eruptions
terrestrial albedo changes and feedback loops
methane gas release and feedback loops
The enhanced greenhouse effect and international variations in greenhouse gas sources and emissions, in relation to economic development, globalization and trade
Synthesis, evaluation and skills opportunities
The complexity of the dynamic climate system and the spatial interactions of different processes and feedback mechanisms
1. Make sure you read the relevant chapter in the books
2. Download a copy of the document on the right and work through the questions.
Concepts: The process of change to the global energy balance is created by variations in solar radiation, terrestrial albedo, and releases in methane gas. The changes can create the possibility of positive and negative feedback looks.
Syllabus point: The enhanced greenhouse effect and international variations in greenhouse gas sources and emissions, in relation to economic development, globalization and trade.
Objectives:
- To recognise patterns in the amount and source of greenhouse gases by location.
- To analyse the role of globalisation, development and trade in relation to patterns
- To practice planning and writing structured essays.
Resources
Our world in Data - This is the best summary of this topic you will find anywhere - even if you just take notes on this around summaries of each of the graphs this would be great.
Worldpopulationreview - also a good map with info per country.
Document - complete and fill in the framework of the essay.
The enhanced greenhouse effect and international variations in greenhouse gas sources and emissions, in relation to economic development, globalization and trade.
1. Minimum requirement - Tasks on Geographyalltheway
2. Extending your knowledge - a) Read through and make notes on pages 43-45 of Simon Oakes book.
3. Would make you an expert: - Our world in Data - This is the best summary of this topic you will find anywhere - even if you just take notes on this around summaries of each of the graphs this would be great.
4. Applying your knowledge - Could you provide answer the question above
TOK link - How useful are models to predict future events. Are they more reliable than fortune tellers.
Climate change science is far from simple. There is uncertainty over the operation of feedback loops and we cannot predict with any certainty what kinds of economic and demographic changes will take place globally or in particular countries. As a result, climate change presents us with a WICKED PROBLEM which, because of its complexity- defies attempts to establish exactly what its effects would be. Unfortunately, this uncertainty is seized upon by climate change skeptics as a reason to avoid taking any action to reduce GHG emissions. - Source Simon Oakes - Geography global change - page 46
Knowledge Question: To what extent are models useful in predicting the future?
Perspective1 - Models are not useful - Watch video on left and read this page. What are the knowers here using as evidence that models are not useful when it comes to climate change.
Perspective 1- Scan through this article and determine some of the arguments that are made against modelling.
Extra research - Research role of Hoover institute and also read some of the comments below the article.
Perspective 1 - Read some of the stories that have made it into the news based on models and predictions by "scientists". What is the aim of this site.
Further Resources: Skeptical Science - How Reliable are climate models.
Perspective 2 - Models are useful
View from Nasa
Task: Go through Part 5 - using models on this section from National Geographic
What other Knowledge questions could you ask. There are many in relation to climate change, as it is still an area that has a great deal of different knowledge claims.
What are the five main arguments used by climate change deniers in this page from Skeptical science.
How does the author refute these claims.
What does it mean when the author of this site claims that "All models are wrong, some are useful"?
If you Read just one thing- The Econonomist - How Modelling articulates the science of climate change.