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Science and Technology

The energy debate: Could our future be renewable?

Learning objectives:• To know why carbon emissions are increasing• To understand the solutions

“Despite public concern for climate change....carbon emissions

are rising” ...why?

• Read the sheet and decide which factors increase carbon emissions

Why have emissions increased?Buy a composter for

food waste; uncooked food and vegetable peelings are stored

and rot to form compost.

Purchase appliances with an efficiency

rating of A*

Sign up to a ‘green tariff’ with your

electricity company

Insulate your loft and cavity walls reducing

the loss of heat (energy) from your

home.

Recycle waste. Use council recycling

centers and recycle from home

Cycle. This healthy but also cuts CO₂

emissions. Many town centers have

designated cycle lanes

Kyoto Treaty (1997); an agreement by

industrialized countries to reduce greenhouse gases

Increase in car use. Over 40% of primary school children are

driven to school.

Population explosion; in 1900 the world

population was 2 billion people; in 2000 it was 6

billion people.

Increase in the number gadgets. In 1970 the

average home had 17 gadgets and in 2005 the average home had 47.

Cheap air flights; Fly to Prague for £20. A substantial growth in

the cheap airlines, e.g. EasyJet and FlyBe

Single occupancy; the number of homes

have increased from 3 million in 1971 to over

7 million in 2005

Buy locally sourced food, in season.

Purchase food from local markets instead of

supermarkets.

Buy a water butt for your garden. Rainwater is stored and used for

watering plants.

Road traffic has increased by 10% since

1997

Increase in food miles. One glass of orange juice is equal to 2 glasses of petrol

Grow your own food. Allotments cost on

average £20 year rent

Leaving household items on standby; uses ½ the energy of leaving

on

Britain’s CO₂ emissions have doubled in just 10

years

Congestion charge in London and Sydney.

Drivers are charged for entering the city

boundary

Purchase energy saving light bulbs.

Often more expensive to buy but can last up

to 20 years.

Reuse plastic bags from the supermarket or buy reusable bags. Collect ‘green’ points.

Improving public transport in cities, e.g.

Nottingham tram system, cycle lanes and

park and ride

Increase in car ownership. The average

shopping trip is 4.3 miles

Car sharing schemes. In USA car share drivers

use the fast lane

Why have emissions increased?Buy a composter for

food waste; uncooked food and vegetable peelings are stored

and rot to form compost.

Purchase appliances with an efficiency

rating of A*

Sign up to a ‘green tariff’ with your

electricity company

Insulate your loft and cavity walls reducing

the loss of heat (energy) from your

home.

Recycle waste. Use council recycling

centers and recycle from home

Cycle. This is healthy but also cuts CO₂

emissions. Many town centers have

designated cycle lanes

Kyoto Treaty (1997); an agreement by

industrialized countries to reduce greenhouse gases

Increase in car use. Over 40% of primary school children are

driven to school.

Population explosion; in 1900 the world

population was 2 billion people; in 2000 it was 6

billion people.

Increase in the number gadgets. In 1970 the

average home had 17 gadgets and in 2005 the average home had 47.

Cheap air flights; Fly to Prague for £20. A substantial growth in

the cheap airlines, e.g. EasyJet and FlyBe

Single occupancy; the number of homes

have increased from 3 million in 1971 to over

7 million in 2005

Buy locally sourced food, in season.

Purchase food from local markets instead of

supermarkets.

Buy a water butt for your garden. Rainwater is stored and used for

watering plants.

Road traffic has increased by 10% since

1997

Increase in food miles. One glass of orange juice is equal to 2 glasses of petrol

Grow your own food. Allotments cost on

average £20 year rent

Leaving household items on standby; uses ½ the energy of leaving

on

Britain’s CO₂ emissions have doubled in just 10

years

Congestion charge in London and Sydney.

Drivers are charged for entering the city

boundary

Purchase energy saving light bulbs.

Often more expensive to buy but can last up

to 20 years.

Reuse plastic bags from the supermarket or buy reusable bags. Collect ‘green’ points.

Improving public transport in cities, e.g.

Nottingham tram system, cycle lanes and

park and ride

Increase in car ownership. The average

shopping trip is 4.3 miles

Car sharing schemes. In USA car share drivers

use the fast lane

We need to conserve energy...How?

• Read the sheet again and identify the ways in which we can reduce our carbon emissions

• Which ideas have local, national and international impacts?

Why have emissions increased?Buy a composter for

food waste; uncooked food and vegetable peelings are stored

and rot to form compost.

Purchase appliances with an efficiency

rating of A*

Sign up to a ‘green tariff’ with your

electricity company

Insulate your loft and cavity walls reducing

the loss of heat (energy) from your

home.

Recycle waste. Use council recycling

centers and recycle from home

Cycle. This is healthy but also cuts CO₂

emissions. Many town centers have

designated cycle lanes

Kyoto Treaty (1997); an agreement by

industrialized countries to reduce greenhouse gases

Increase in car use. Over 40% of primary school children are

driven to school.

Population explosion; in 1900 the world

population was 2 billion people; in 2000 it was 6

billion people.

Increase in the number gadgets. In 1970 the

average home had 17 gadgets and in 2005 the average home had 47.

Cheap air flights; Fly to Prague for £20. A substantial growth in

the cheap airlines, e.g. EasyJet and FlyBe

Single occupancy; the number of homes

have increased from 3 million in 1971 to over

7 million in 2005

Buy locally sourced food, in season.

Purchase food from local markets instead of

supermarkets.

Buy a water butt for your garden. Rainwater is stored and used for

watering plants.

Road traffic has increased by 10% since

1997

Increase in food miles. One glass of orange juice is equal to 2 glasses of petrol

Grow your own food. Allotments cost on

average £20 year rent

Leaving household items on standby; uses ½ the energy of leaving

on

Britain’s CO₂ emissions have doubled in just 10

years

Congestion charge in London and Sydney.

Drivers are charged for entering the city

boundary

Purchase energy saving light bulbs.

Often more expensive to buy but can last up

to 20 years.

Reuse plastic bags from the supermarket or buy reusable bags. Collect ‘green’ points.

Improving public transport in cities, e.g.

Nottingham tram system, cycle lanes and

park and ride

Increase in car ownership. The average

shopping trip is 4.3 miles

Car sharing schemes. In USA car share drivers

use the fast lane

Local

National

International

Why have emissions increased?Buy a composter for

food waste; uncooked food and vegetable peelings are stored

and rot to form compost.

Purchase appliances with an efficiency

rating of A*

Sign up to a ‘green tariff’ with your

electricity company

Insulate your loft and cavity walls reducing

the loss of heat (energy) from your

home.

Recycle waste. Use council recycling

centers and recycle from home

Cycle. This is healthy but also cuts CO₂

emissions. Many town centers have

designated cycle lanes

Kyoto Treaty (1997); an agreement by

industrialized countries to reduce greenhouse gases

Increase in car use. Over 40% of primary school children are

driven to school.

Population explosion; in 1900 the world

population was 2 billion people; in 2000 it was 6

billion people.

Increase in the number gadgets. In 1970 the

average home had 17 gadgets and in 2005 the average home had 47.

Cheap air flights; Fly to Prague for £20. A substantial growth in

the cheap airlines, e.g. EasyJet and FlyBe

Single occupancy; the number of homes

have increased from 3 million in 1971 to over

7 million in 2005

Buy locally sourced food, in season.

Purchase food from local markets instead of

supermarkets.

Buy a water butt for your garden. Rainwater is stored and used for

watering plants.

Road traffic has increased by 10% since

1997

Increase in food miles. One glass of orange juice is equal to 2 glasses of petrol

Grow your own food. Allotments cost on

average £20 year rent

Leaving household items on standby; uses ½ the energy of leaving

on

Britain’s CO₂ emissions have doubled in just 10

years

Congestion charge in London and Sydney.

Drivers are charged for entering the city

boundary

Purchase energy saving light bulbs.

Often more expensive to buy but can last up

to 20 years.

Reuse plastic bags from the supermarket or buy reusable bags. Collect ‘green’ points.

Improving public transport in cities, e.g.

Nottingham tram system, cycle lanes and

park and ride

Increase in car ownership. The average

shopping trip is 4.3 miles

Car sharing schemes. In USA car share drivers

use the fast lane

Local

National

International

What are the advantages of wind power?

What are the advantages of wind power?

1. The wind is free and with modern technology it can be captured efficiently.2. Once the wind turbine is built the energy it produces does not cause green house gases or other pollutants.3. Although wind turbines can be very tall each takes up only a small plot of land. 4. Many people find wind farms an interesting feature of the landscape.5. Remote areas that are not connected to the electricity power grid can use wind turbines to produce their own supply.6. Wind turbines also have a role to play in the third world.7. Wind turbines are available in a range of sizes which means a vast range of people and businesses can use them.

Our renewable future...and reality?

• Read through the information on the chart

• Choose which energy resource you think Britain should be using in the future giving reasons to support your point of view.