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GP Climate Change > Documentary: The Truth About Climate Change > Flashcards

Documentary: The Truth About Climate Change Flashcards

1
Q

Compared to any other animals, humans have an unprecedented control of the w______.

A

Compared to any other animals, humans have an unprecedented control of the world.

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2
Q

Compared to any other animals, humans have an unprecedented ______ of the world.

A

Compared to any other animals, humans have an unprecedented control of the world.

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3
Q

Scientists think there is a link between increased temperatures and what effect on the climate?

A

Scientists think there is a link between increased temperatures and climate change.

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4
Q

There is now more what in the atmosphere than at any time in the past 650 000 years?

A

There is now more carbon dioxide in the atmosphere than at any time in the past 650 000 years.

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5
Q

There is now more carbon dioxide in the atmosphere than at any time in the past how many years? .

A

There is now more carbon dioxide in the atmosphere than at any time in the past 650 000 years.

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6
Q

What is happening to polar bear numbers due to global warming?

A

Polar bear numbers are declining.

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7
Q

What is happening to polar bear cub survival due to global warming?

A

There is a reduction in polar bear cub survival?

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8
Q

Why are polar bears affected?

A

Earlier ice-melt means it is harder for polar bears to catch seals after hibernation.

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9
Q

What is happening to the ice-melt in the Arctic?

A

The ice is melting earlier in the Arctic.

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10
Q

What is happening to glaciers?

A

Worldwide, most glaciers are in retreat (they are getting smaller).

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11
Q

What will be the effect of Greenland’s ice melting?

A

An increase in Greenland’s ice-melt would lead to an increase in sea levels.

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12
Q

What is one place already affected by increasing sea levels?

A

Tuvalu in the Pacific is already experiencing problems due to increased sea levels.

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13
Q

What kind of problems is Tuvalu facing due to increased sea levels?

A

In Tuvalu, there is already flooding of homes, damaged gardens and health problems due to very high tides.

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14
Q

What is the link between increased temperatures and hurricanes?

A

Hurricanes are a direct result of water temperatures above 26 degrees.

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15
Q

What will happen to hurricanes due to global warming?

A

Warmer sea temperatures will lead to stronger and more frequent hurricanes.

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16
Q

Is climate change a new event?

A

Climate change has always been a part of the earth’s history. However, climate change due to human activity is a new event.

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17
Q

How has the earth’s temperature been different in the past?

A

During the time of dinosaurs, the earth was much hotter. At other times, the earth has been very cold.

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18
Q

What is the link between CO2 and climate change?

A

CO2 traps energy and acts like a “blanket” and so stops the sun’s energy from escaping back into space.

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19
Q

Is the greenhouse effect bad?

A

We need the greenhouse effect. Without it, the earth’s temperature would be about -19 degrees celsius.

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20
Q

What are the two main benefits CO2 brings us?

A

CO2 promotes plant growth and keeps the earth warm via the greenhouse effect.

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21
Q

What are fossil fuels?

A

Fossil fuels come from decayed plants and animals that were converted to fuels due to heat and pressure.

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22
Q

What is the effect of forests on the climate?

A

Forests help cool the climate.

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23
Q

What is the effect of forests on the CO2 levels?

A

Forests absorb CO2 and store it.

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24
Q

What happened when we burn forests - or fossil fuels?

A

The stored carbon is released into the atmosphere.

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25
Q

What does the burning of fossil fuels do to the CO2 “blanket” around the earth?

A

Burning fossil fuels thickens the CO2 “blanket” around the earth and so could lead to global warming.

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26
Q

What is happening to the amount of CO2 in the atmosphere?

A

The amount of CO2 in the atmosphere is increasing.

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27
Q

What gas in the atmosphere is increasing?

A

The amount of CO2 in the atmosphere is increasing.

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28
Q

In ____, CO2 levels in the atmosphere were 300 parts per million. This had risen to 400 parts per million by 2013.

A

In 1930, CO2 levels in the atmosphere were 300 parts per million. This had risen to 382 parts per million by 2010.

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29
Q

How do scientists know there is now more CO2 in the atmosphere than in the past?

A

Scientists use ice-core samples to find out how much CO2 was in the atmosphere in the past.

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30
Q

Until 1950, the amount of ____ in the atmosphere had never been above 300 ppm.
http://climate.nasa.gov/climate_resources/24/

A

Until 1950, the amount of CO2 in the atmosphere had never been above 300 ppm.

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31
Q

Until 1950, the amount of CO2 in the __________ had never been above 300 ppm.

A

Until 1950, the amount of CO2 in the atmosphere had never been above 300 ppm.

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32
Q

Until ____, the amount of CO2 in the atmosphere had never been above 300 ppm.

A

Until 1950, the amount of CO2 in the atmosphere had never been above 300 ppm.

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33
Q

What do scientists believe is causing climate change?

A

Scientists believe human activity is causing climate change.

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34
Q

What happened to the Amazon during the 2005 drought?

A

In the 2005 drought, the Amazon river levels dropped leading to a massive drop in fish numbers. Also, hundreds of thousands of square km of forests were damaged.

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35
Q

What do scientists think caused the 2005 drought in the Amazon?

A

Scientists think the 2005 Amazon drought was due to higher Atlantic sea temperatures.

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36
Q

Scientists think the 2005 Amazon _______ was due to higher Atlantic sea temperatures.

A

Scientists think the 2005 Amazon drought was due to higher Atlantic sea temperatures.

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37
Q

What is happening to coral reefs around the world?

A

Coral reefs around the world are experiencing “coral bleaching”.

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38
Q

How does coral bleaching occur?

A

Higher sea temperatures lead to lower algae growth. This leads to coral death.

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39
Q

Why do higher temperatures affect algae growth?

A

Heat and increased light damage algae (which are needed for the reefs to grow).

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40
Q

What is climate modelling?

A

Climate modelling is predicting the weather in the future.

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41
Q

What extreme weather event happened in Europe in 2003?

A

In 2003, there was a heatwave in Europe.

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42
Q

The 2003 ________ in Europe was a 1 in 200 year event.

A

The 2003 heatwave in Europe was a 1 in 200 year event.

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43
Q

Can we blame the heatwave or the Amazon drought on global warming?

A

We cannot blame a single specific event on global warming. We can, however, say is causes increases in specific types of events - like heatwaves or droughts.

44
Q

What is the heatwave prediction for Europe by 2080?

A

Climate modelling tells us Europe will experience heatwaves every two years by 2080.

45
Q

What would people in 2080 Europe think about the 2003 type of heatwave?

A

People in 2080 Europe would think the 2003 heatwaves was cool!

46
Q

In some parts of China, what has happened to the rainfall?

A

In some parts of China there is very little rainfall. As a results, the desert is smothering villages and towns.

47
Q

How do rural desert towns in China affect its big cities?

A

Cities like Beijing can experience terrible sandstorms due to the lack of rain.

48
Q

How much CO2 do we release into the atmosphere each year?

A

We release 25 000 000 000 tonnes of CO2 into the atmosphere each year.

49
Q

How many people died in the 2003 heatwave in Europe?

A

More than 20 000 people died in the 2003 heatwave in Europe.
http://www.metoffice.gov.uk/learning/learn-about-the-weather/weather-phenomena/case-studies/heatwave

50
Q

More than 20 000 people ____ in the 2003 heatwave in Europe.

A

More than 20 000 people died in the 2003 heatwave in Europe.

51
Q

What temperature increase in predicted by climate modelling?

A

Climate modelling predicts temperature changes between 2 and 6 degrees during this century.

52
Q

Who would be affected by rising sea levels?

A

Millions of homes are close to sea level worldwide and so all would be affected by rising sea levels.

53
Q

What kind of extreme weather would be caused by higher temperatures?

A

Higher temperatures would lead to more flooding, more extreme storms (and so damage), droughts, and fires.

54
Q

Higher temperatures would lead to more fl_____, more extreme st_____ (and so damage), droughts, and f____

A

Higher temperatures would lead to more flooding, more extreme storms (and so damage), droughts, and fires

55
Q

What temperature increase appears to be inevitable?

A

A one to two degree temperature increase is considered inevitable over the next 25 years.

56
Q

A one to two degree temperature increase is considered ____________ over the next 25 years.

A

A one to two degree temperature increase is considered inevitable over the next 25 years.

57
Q

What percentage of CO2 emissions is caused by domestic activities?

A

50% of CO2 emissions are caused by domestic activities.

58
Q

50% of CO2 emissions are _______ by domestic activities.

A

50% of CO2 emissions are caused by domestic activities.

59
Q

How many tonnes of CO2 are emitted by our cars each year?

A

Each family car emits about 20 tonnes of CO2 per year.

60
Q

Are cars the biggest problem?

A

Our energy use at home emits just as much CO2 as our cars do.

61
Q

What is the prediction for the Arctic by 2070?

A

Scientists predict the Arctic will be completely ice-free in summer by 2070.

62
Q

What climate problem would an ice-free Arctic create?

A

White ice reflects sunlight whereas darker sea water absorbs heat. This will lead to more warming of the seas..

63
Q

White ice ________ sunlight whereas darker sea water absorbs heat. This will lead to more warming of the seas.

A

White ice reflects sunlight whereas darker sea water absorbs heat. This will lead to more warming of the seas

64
Q

What do scientists predict may happen to animals with global warming?

A

Some scientists predict global warming could place up to 50% of all species at risk of extinction.
Arctic animals, for example, have nowhere to go.

65
Q

What do scientists predict may happen to animals in South Africa with global warming?

A

South Africa is predicted to be very badly affected. There will be lots of animal deaths and mass migrations of animals.

66
Q

How does our food contribute to global warming?

A

10% of family emissions are due to food. A lot of our food crosses continents to get to us. Also, when we put food scraps in the rubbish, they create greenhouse gases as they break down.

67
Q

10% of family emissions are due to food. A lot of our food crosses _________ to get to us. Also, when we put food scraps in the _______, they create greenhouse gases as they break down.

A

10% of family emissions are due to food. A lot of our food crosses continents to get to us. Also, when we put food scraps in the rubbish, they create greenhouse gases as they break down.

68
Q

Global warming could create what new risk in the Amazon?

A

Global warming could create a fire risk in the Amazon.

69
Q

If the Amazon was destroyed by fire or simply drought, what two problems would occur?

A

If the Amazon was destroyed by fire or simply drought, huge amounts of greenhouse gases would be released, and we would lose its cooling mechanism.

70
Q

How does the Amazon cool the planet?

A

It absorbs a lot of sunshine which is converted into water vapour, leading to a cooling effect.

71
Q

What is the fastest growing source of CO2?

A

Flying is the fastest growing source of CO2.

72
Q

_______ is the fastest growing source of CO2.

A

Flying is the fastest growing source of CO2.

73
Q

Over the next 25 years, flight emissions are expected to ______.

A

Over the next 25 years, flight emissions are expected to double.

74
Q

Over the next 25 years, flight ________ are expected to double.

A

Over the next 25 years, flight emissions are expected to double.

75
Q

Do all families emit a lot of carbon?

A

In developed countries, all families emit a lot a carbon simply as part of their daily lives.

76
Q

How much carbon does the average Chinese person emit compared to the average westerner?

A

The average Chinese person emits 1/7 the amount of carbon compared to the average westerner.

77
Q

What is expected to happen to emissions by Chinese people?

A

Emissions by the average Chinese person are expected to increase greatly as their wealth increases.

78
Q

Emissions by the average Chinese person are expected to increase greatly as their _____ increases.

A

Emissions by the average Chinese person are expected to increase greatly as their wealth increases.

79
Q

What fuel source powers a lot of the Chinese economy?

A

Coal power fuels a lot of the Chinese economy.

80
Q

Coal power fuels a lot of the Chinese __________.

A

Coal power fuels a lot of the Chinese economy.

81
Q

What is wrong with coal power?

A

Coal power is the biggest CO2 polluter we have.

82
Q

Coal power is the biggest ____ polluter we have.

A

Coal power is the biggest CO2 polluter we have.

83
Q

In 20 years, which country will be the biggest emitter of greenhouse gases?

A

In 20 years, China will be the biggest emitter of greenhouse gases.

84
Q

By 2050, it is expected CO2 emissions will have _________.

A

By 2050, it is expected CO2 emissions will have doubled.

85
Q

By 2050, it is expected CO2 _________ will have doubled.

A

By 2050, it is expected CO2 emissions will have doubled.

86
Q

Apart from trees, what else absorbs or stores a lot of carbon?

A

Apart from trees, the ocean absorbs or stores a lot of carbon.

87
Q

The ocean absorbs what percentage of CO2?

A

The ocean absorbs 50% of CO2.

88
Q

What is the problem caused by the oceans having to absorb so much CO2?

A

The oceans will become more and more acidic if they absorb too much CO2.

89
Q

What is wrong with more acidic oceans?

A

As oceans become more acidic, it can be lethal to animal life.

90
Q

What are examples of problems caused by increased ocean acidity?

A

Animals such as sea urchins, starfish and plankton could be seriously affected. Loss of plankton would be a disaster to for the whole food chain in the seas.

91
Q

Professor Pacal Of Princeton university suggests ___ steps could be taken to freeze emissions at 2006 levels.

A

Professor Pacal Of Princeton university suggests 7 steps could be taken to freeze emissions at 2006 levels.

92
Q

Professor Pacal Of Princeton university suggests 7 steps could be taken to freeze emissions at _____ levels.

A

Professor Pacal Of Princeton university suggests 7 steps could be taken to freeze emissions at 2006 levels.

93
Q

Professor Pacal of Princeton University says one step is we could change our household ___________ of electricity.

A

Professor Pacal of Princeton University says one step is we could change our household consumption of electricity.

94
Q

To reduce household consumption of electricity, we would do what three things?

A

To reduce household consumption of electricity, we could turn thermostats down in winter, (or up in the summer), turn off all appliances on standby, and compost our food scraps.

95
Q

To reduce _________ consumption of electricity, we could turn thermostats down in winter, (or up in the summer), turn off all appliances on standby, and _______ our food scraps.

A

To reduce household consumption of electricity, we could turn thermostats down in winter, (or up in the summer), turn off all appliances on standby, and compost our food scraps.

96
Q

The three simple steps to reduce household electricity consumption could cut household usage by ___%.

A

The three simple steps to reduce household electricity consumption could cut household usage by 50%.

97
Q

Professor Pacal of Princeton University says another step to reduce household consumption would be to drive a more ___. ________ car.

A

Professor Pacal of Princeton University says another step to reduce household consumption would be to drive a more fuel efficient car.

98
Q

Another step to reduce household consumption would be to drive 50% less and use _____ ________ instead.

A

Another step to reduce household consumption would be to drive 50% less and use public transport instead.

99
Q

To reduce emissions, we could change the types of power we use. Specifically, which highly debated power source emits no carbon?

A

Nuclear power does not emit any carbon dioxide to produce power.

100
Q

Why are wind turbines and solar power so good in terms of global warming?

A

Neither wind turbines nor solar power emit any greenhouse gases when they produce electricity.

101
Q

One radical possibility is to ______ carbon from the atmosphere and inject it into the ground.

A

One radical possibility is to remove carbon from the atmosphere and inject it into the ground.

102
Q

A carbon injection rig can inject ______ of tones of CO2 into the ground every ______.

A

A carbon injection rig can inject millions of tones of CO2 into the ground every year.

103
Q

Is doing nothing a solution?

A

If we do nothing about global warming, scientists say the will be a “catastrophic rise in sea levels.”.

104
Q

What would be the result of a large rise in sea levels?

A

Many of the worlds great cities would be under water if there is a medium rise in sea levels.

105
Q

What will a smaller sea level rise do within the next 50 years?

A

It is predicted a small sea level rise could displace 150 million people within the next 50 years.

106
Q

It is predicted a small sea level rise could displace ____ million people within the next 50 years

A

It is predicted a small sea level rise could displace 150 million people within the next 50 years

GP Climate Change (8 decks)

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