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CMA4801 Assignment 1 2026 (Answer Guide) – Due 08 May 2026
CLIMATE MITIGATION AND ADAPTATION
VERIFIED AND CERTIFIED ANSWERS. WRITTEN IN REQUIRED FORMAT AND WITHIN
GIVEN GUIDELINES. IT IS GOOD TO USE AS A GUIDE AND FOR REFERENCE, NEVER
PLAGARIZE. Thank you and success in your academics.
UNISA, 2026
Contents
QUESTION 1................................................................................................................................2
Introduction .............................................................................................................................2
Definitions ...............................................................................................................................2
Timescale Differentiation.......................................................................................................2
Illustrations .............................................................................................................................3
Conclusion ..............................................................................................................................4
QUESTION 2................................................................................................................................4
Introduction .............................................................................................................................4
Evaluation of Major Greenhouse Gases ..............................................................................5
Brief Discussion .....................................................................................................................6
QUESTION 3................................................................................................................................6
3.1 Differentiation between observed changes and projected future climate change
outcomes .................................................................................................................................6
3.2 Observed and projected climate changes in Africa .....................................................7
3.3 Regions projected to experience high precipitation and high temperatures under
a 4°C scenario .........................................................................................................................8
3.4 Analysis of environmental and socio-economic impacts ...........................................8
Conclusion ..............................................................................................................................9
QUESTION 4.............................................................................................................................. 10
4.1 Definition of a climate sceptic ...................................................................................... 10
4.2 Types of climate change sceptics ................................................................................ 10
Conclusion ............................................................................................................................ 11
REFERENCE LIST ........................................................................................................................ 12
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QUESTION 1
Introduction
Understanding the distinctions between weather, climate variability, and climate change
is fundamental in climate science, as these concepts operate over different timescales
and describe different atmospheric processes. While they are often used
interchangeably in everyday language, each term has a precise scientific meaning that
reflects how the Earth’s climate system behaves over time (IPCC, 2021).
Definitions
Weather refers to the short-term atmospheric conditions at a specific place and time. It
includes elements such as temperature, rainfall, humidity, and wind, and can change
rapidly within hours or days (NASA, 2022).
Climate variability describes the natural fluctuations in climate patterns over months,
years, or decades. These variations occur around a long-term average climate and may
be influenced by natural processes such as ocean-atmosphere interactions like El Niño
(NOAA, 2023).
Climate change refers to long-term, significant changes in the Earth’s climate system,
particularly shifts in temperature and weather patterns that persist for decades or
longer. In contemporary discourse, it is largely associated with human activities such as
greenhouse gas emissions (IPCC, 2021).
Timescale Differentiation
The key distinction between these concepts lies in their timescales.
Weather operates over very short periods, ranging from hours to days. For
example, a sudden thunderstorm or a hot afternoon reflects weather conditions
at that moment.
CMA4801 Assignment 1 2026 (Answer Guide) – Due 08 May 2026
CLIMATE MITIGATION AND ADAPTATION
VERIFIED AND CERTIFIED ANSWERS. WRITTEN IN REQUIRED FORMAT AND WITHIN
GIVEN GUIDELINES. IT IS GOOD TO USE AS A GUIDE AND FOR REFERENCE, NEVER
PLAGARIZE. Thank you and success in your academics.
UNISA, 2026
Contents
QUESTION 1................................................................................................................................2
Introduction .............................................................................................................................2
Definitions ...............................................................................................................................2
Timescale Differentiation.......................................................................................................2
Illustrations .............................................................................................................................3
Conclusion ..............................................................................................................................4
QUESTION 2................................................................................................................................4
Introduction .............................................................................................................................4
Evaluation of Major Greenhouse Gases ..............................................................................5
Brief Discussion .....................................................................................................................6
QUESTION 3................................................................................................................................6
3.1 Differentiation between observed changes and projected future climate change
outcomes .................................................................................................................................6
3.2 Observed and projected climate changes in Africa .....................................................7
3.3 Regions projected to experience high precipitation and high temperatures under
a 4°C scenario .........................................................................................................................8
3.4 Analysis of environmental and socio-economic impacts ...........................................8
Conclusion ..............................................................................................................................9
QUESTION 4.............................................................................................................................. 10
4.1 Definition of a climate sceptic ...................................................................................... 10
4.2 Types of climate change sceptics ................................................................................ 10
Conclusion ............................................................................................................................ 11
REFERENCE LIST ........................................................................................................................ 12
, 2|Page
QUESTION 1
Introduction
Understanding the distinctions between weather, climate variability, and climate change
is fundamental in climate science, as these concepts operate over different timescales
and describe different atmospheric processes. While they are often used
interchangeably in everyday language, each term has a precise scientific meaning that
reflects how the Earth’s climate system behaves over time (IPCC, 2021).
Definitions
Weather refers to the short-term atmospheric conditions at a specific place and time. It
includes elements such as temperature, rainfall, humidity, and wind, and can change
rapidly within hours or days (NASA, 2022).
Climate variability describes the natural fluctuations in climate patterns over months,
years, or decades. These variations occur around a long-term average climate and may
be influenced by natural processes such as ocean-atmosphere interactions like El Niño
(NOAA, 2023).
Climate change refers to long-term, significant changes in the Earth’s climate system,
particularly shifts in temperature and weather patterns that persist for decades or
longer. In contemporary discourse, it is largely associated with human activities such as
greenhouse gas emissions (IPCC, 2021).
Timescale Differentiation
The key distinction between these concepts lies in their timescales.
Weather operates over very short periods, ranging from hours to days. For
example, a sudden thunderstorm or a hot afternoon reflects weather conditions
at that moment.
