Sec 2 Sustainable Environment Programme Climate Changes.
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Transcript of Sec 2 Sustainable Environment Programme Climate Changes.
Think-pair-share In your pairs, discuss what you have
learnt about climate change in IS lesson Questions to be discussed
What is climate change? What causes climate change? How can we slow down climate change?
Climate Change (15 mins)
Measurement of humanity’s demand on nature
The amount of land and water area a human population uses to provide all it takes from nature
What is an Ecological Footprint?
How many human footprints do you think it takes to produce a T-shirt, a pair of jeans and a pair of sneakers?
How much water do you think you need to wash the clothes you wear per year?
Trigger Activity
Log on to the website below and calculate your ecological footprints
http://www.footprintnetwork.org/en/index.php/GFN/page/calculators/
http://ecoguru.panda.org/#/home
Calculate your ecological footprints
Total amount of greenhouse gases produced (e.g. carbon dioxide, CO2) to directly and indirectly support human activities in a given time frame.
What is Carbon Footprint?
Carbon Emissions from public and private transport
Burning of fossil fuels to power energy plants
Direct Impact from Human Activities
Distance our food has to travel before it is consumed by us
Distance to deliver the clothes to us
Indirect Impact from Human Activities
Why is it important to reduce carbon footprints?
Carbon dioxide is a form of greenhouse gases.
Traps the heat on the earth leading to global warming and ultimately climate changes.
According to report by WWF (2012), Singapore is the top carbon emitter in Asia-Pacific
Thinking Question:Why do you think Singapore is the top carbon emitter in Asia-Pacific?
Turn off electrical appliances when not in use e.g. television, DVD player
Carbon footprints of common electrical appliacnces
How can we help to reduce carbon footprints?
Appliance kg CO2 per yearMicrowave
Oven39
Washing Machine
51
Electric Oven 91
Standard Light Bulb
63
Low Energy Light Bulb
11
Primary TV - Plasma
10
Turn down the water heating setting Fill washing machine with a full load Do weekly shopping in a single trip Fit energy saving light bulbs Take public transport / car pool Recycle Reduce consumption of meat
How can we help to reduce carbon footprints?