Lesson Notes By Weeks and Term v4 - JHS 2
CLIMATE CHANGE AND GREEN ECONOMY
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CLIMATE CHANGE AND GREEN ECONOMY
Download the Lessonotes Mobile Ghana app for faster lesson access on Android and iPhone.
Subject: Science
Class: JHS 2
Term: 3rd Term
Week: 10
Grade code: B8.5.4.1.1
Strand code: 5
Sub-strand code: 4
Content standard code: B8.5.4.1
Indicator code: B8.5.4.1.1
Theme: HUMANS AND THE ENVIRONMENT
Subtheme: CLIMATE CHANGE AND GREEN ECONOMY
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Climate change means long-term changes in weather patterns (temperature, rainfall, wind, and seasons) over many years. In Ghana, learners already experience it through hotter days, unpredictable rains, flooding in towns, dry spells affecting farming, and coastal erosion in places like Keta and parts of Cape Coast. Climate change affects health, food prices, water supply, and jobs. A green economy is an economy that grows while protecting the environment—by reducing pollution, saving energy, and using resources wisely.
A. Weather vs Climate (Important distinction) Weather: Day-to-day condition of the atmosphere (today’s rain, today’s temperature). Climate: Average weather conditions of a place over a long period (about 30 years or more).
Example (Ghana): If it rains in Kumasi today, that is weather. If Kumasi’s rainfall pattern changes over many years (e.g., rains start later and end earlier), that is climate change.
B. Meaning of Climate Change Climate change is a long-term shift in temperatures and weather patterns. These shifts may be natural, but today the major cause is human activities, especially those that increase greenhouse gases in the atmosphere.
C. The Greenhouse Effect (Step-by-step) The Sun’s energy reaches the Earth. The Earth absorbs some energy and becomes warm. The Earth releases some heat back into the atmosphere. Greenhouse gases trap part of this heat, keeping Earth warm enough for life.