Hazards: Climate Change Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

What 2 ways can we use to manage climate change?

A

mitigation and adaptation

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2
Q

What is mitigation?

A

strategies dealing with the CAUSES of climate change

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3
Q

What is adaptation?

A

strategies responding to the IMPACTS of climate change

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4
Q

How is planting trees mitigation?

A

acts as carbon sinks - via photosynthesis absorbs CO2 and releases oxygen

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5
Q

How is using an alternative energy production mitigation?

A

renewable sources (wind, solar, wave, tidal) releases less greenhouse gases compared to fossil fuels - also last longer

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6
Q

How is using carbon capture mitigation?

A

takes CO2 from emission sources and store it underground - impermeable ‘cap rock’ prevents it escaping

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7
Q

How are international agreements mitigation?

A

encourages countries to take responsibility for reducing CO2 emissions - e.g. Paris 2015, targets are more likely to be met

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8
Q

How are agricultural systems adapted?

A

production may move location, irrigation may be necessary

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9
Q

How is managing water supplies adapting?

A

reducing demand (water-efficient devices) and increasing supply (desalination plant)

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10
Q

How is reducing risk of climate change adapting?

A

sea level rise - constructing defences (Thames barrier), raising properties on stilts or relocating those at risk

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11
Q

What are the natural factors contributing to climate change?

A

orbital changes, solar output, volcanic activity

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12
Q

What are the human factors contributing to climate change?

A

agriculture, fossil fuels, deforestation

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13
Q

How has solar output impacted climate change?

A

sunspots - increases solar energy resulting in higher temps

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14
Q

How has orbital changes impacted climate change?

A

earths orbit is elliptical - closer to the sun, increasing temps

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15
Q

How has volcanic activity impacted climate change?

A

-volcanic ash can block out the sun, reducing temps (SHORT)
-sulphuric acid reflects radiation from the sun (LONG)

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16
Q

How has fossil fuels impacted climate change?

A

releases greenhouse gases (enhanced greenhouse effect)

17
Q

How has changing agriculture impacted climate change?

A

produces methane and CO2 (enhanced greenhouse effect)

18
Q

How has deforestation impacted climate change?

A

trees are carbon sinks - removing the ability for CO2 to be removed from the atmosphere

19
Q

Why are fossil fuels becoming more of an issue?

A

increased population, wealth and economic development globally increases demand for energy

20
Q

Why is agriculture becoming more of an issue?

A

increasing global demand for beef and rice due to food trends, increased population

21
Q

Why is deforestation becoming more of an issue?

A

MICs need to develop economically, globalisations creates markets for importing goods

22
Q

What is the enhanced greenhouse effect?

A

a thicker layer of greenhouse gases in our atmosphere - traps more heat which leads to global warming

23
Q

What are some social impacts of climate change?

A

-increased risk of disease (heat stroke, skin cancer)
-droughts reduce food and water supplies (Sub-Saharan A)
-ski industry may decline (Alps)

24
Q

What are some environmental impacts of climate change?

A

-sea level rise causes flooding and coastal erosion
-ice melts so wildlife decline (polar bears + seals in Arctic)