Climate Change

Question 1

Name 4 natural cause of climate change

Answer 1

• Shape of Earth’s orbit: eliptical = warmer, circular = cooler
• Tilt of Earth’s axis: greater tilt = warmer, as facing sun
• Solar Output - varying amount of radiation from Sun
• Volcanic activity: puts ash in atmosphere, blocking sunlight making it cooler

Question 2

Name 4 effects of the 1783 Laki Volcanic Eruption, Iceland

Answer 2

• 1/3 population dead due to millions of tons of poisonous gas
• Liquid rock poured for 8 months
• Water and particles -> v.dense fog, didn’t see sun for weeks
• Impact felt in Europe

Question 3

Give 4 human causes of climate change

Answer 3

• CO2 levels increase after Industrial Revolution from burning fossil fuels
• Nitrous oxide: car exhausts, fertilisers
• Deforestation
• Methane from livestock, food in landfill and growing rice

Question 4

What is the greenhouse effect?

Answer 4

Heat from Sun trapped in atmosphere by greenhouse gases

Question 5

Name 3 advantages of climate change in the UK

Answer 5

• Higher temp -> more potatoes + tomatoes
• Increased growing season in Scotland
• Mediterranean style summers in South
• Warm enough for peaches and grapevines in South

Question 6

Name 3 disadvantages of climate change in the UK

Answer 6

• Less snow -> no snow sports in Scotland
• Rising sea levels -> £10 bil in sea defences
• Need new thames barrier
• Lost low-lying farmland

Question 7

Explain 5 global impacts of climate change

Answer 7

• Less food -> prices increase
• Habitats destroyed
• Ice caps melt -> rising sea levels -> coastal flooding
• 10 mil flooded by 2080
• Disease: malaria moves to South Italy

Question 8

Give 2 advantages and 4 disadvantages of climate change in Bangladesh

Answer 8

Advantages:

• Better at predicting/preparing for cyclones
• Built hurricane shelters

Disadvantages:

• More cyclones
• Losing low coastline, where most people live
• Sewage system disrupted
• Seawater stops crops growing

Question 9

Give 4 ways a named example of local action can reduce the impact of climate change

Answer 9

SHTC

• Eco action team
• Recycling bin in every classroom
• Wind turbine/ solar panels
• QUAD: compost bins compost green waste from Food Tech

Question 10

Give 4 ways individual action can reduce the impact of climate change

Answer 10

• Reduce unnecessary luxuries
• Use bike
• Use local farmers market (reduce transport)
• Recycle

Question 11

Explain 2 facts about how international action can reduce climate change

Answer 11

1997 Kyoto Protocol Agreed
- 178 countries sign treaty to reduce greenhouse gases

2008 Bali Conference
- All nations agreed to tackle climate change