Climate Change Flashcards

(51 cards)

1
Q

How do ice cores show climate change?

A

Trapped gases in ice reveal past temperatures.

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2
Q

How do tree rings provide evidence of climate change?

A

Wider rings mean warmer years, thinner rings mean colder years.

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3
Q

How does glacier retreat show climate change?

A

Many glaciers are shrinking due to rising temperatures.

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4
Q

Why are sea levels rising?

A

ice is melting, and warm water expands (thermal expansion).

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4
Q

Name three natural causes of climate change.

A

Orbital changes
volcanic activity
solar output.
Ocean Currents

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5
Q

How do humans contribute to climate change?

A

Burning fossil fuels
deforestation
farming (methane from cows).
Industry
Transport

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6
Q

Name three effects of climate change.

A

Extreme weather
rising sea levels
and loss of habitats.

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7
Q

How does climate change affect food and water supply?

A

Droughts and floods make farming harder, leading to shortages.

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8
Q

What is mitigation?

A

Reducing causes of climate change (e.g., using renewable energy).

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9
Q

What is adaptation?

A

Adjusting to climate change (e.g., building flood defences).

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10
Q

How can trees help reduce climate change?

A

Trees absorb CO₂, reducing greenhouse gases

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11
Q

Name an international agreement to tackle climate change.

A

The Paris Agreement.

x

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12
Q

How do ocean sediments show past climates?

A

layers of sediment contain tiny fossils that reveal past temperatures.

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13
Q

How do extreme weather events provide evidence for climate change?

A

Rising Sea Levels and Coastal Flooding
More Frequent Droughts and Wildfires
Stronger Storms and Hurricanes
Increased Heatwaves

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14
Q

What are Milankovitch Cycles?

A

A: Cphanges in Earth’s orbit that affect climate over thousands of years.

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15
Q

How do volcanic eruptions affect climate?

A

They release gases and ash that can cool or warm the Earth.

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16
Q

What’s orbital changes

A

Orbital changes is when earths position around the sun changes over time

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17
Q

What happens in volcanic activity?

A

Eruptions release gases that can warm or cool the earth

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17
Q

What’s meant by solar output ?

A

Solar output means that the sun’s energy varies over time

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17
Q

How is burning fossil fuels a human cause?

A

cars, factories and power stations release CO2

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17
Q

How is deforestation a human cause?

A

Fewer trees mean more CO2

17
Q

How is farming a human cause?

A

Cows produce methane, fertilizers release greenhouse gases

17
Q

How to manage climate change?

A

Use renewable energy (solar, wind, hydro)
Plant more trees (afforestation)
international agreements.
Build flood defences.
Grow draught- resistant crops
Relocate people from high risk area.

17
Q

what’s meant by climate change?

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Methods to mitigate climate change
Renewable Energy (solar, wind, hydro) Afforestation (plant more trees) Energy Efficiency (electric cars, LED lights) Carbon Capture (store CO₂ underground)
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ways to mitigate climate change
Use clean energy🌞 Stop deforestation🌳 save energy and use electric transport🚗⚡ Recycle and reduce ways🔄 Change farming methods🌾
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what does rising temperature lead to?
Global warming causes heatwaves and droughts. 🌡️🔥
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what does Melting Ice Caps & Glaciers lead to?
Leads to rising sea levels. 🏔️➡️🌊
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what does rising of sea level lead to?
Coastal areas flood, damaging homes. 🌊🏠
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What does More Extreme Weather lead to ?
Stronger storms, hurricanes, and wildfires. 🌪️🔥
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What does Loss of Biodiversity lead to ?
Animals lose their habitats (polar bears, coral reefs). 🐻‍❄️🐠
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Social Environmental Impacts Impacts (People & Health) 🚶‍♂️💔
✅ Food Shortages – Crops fail due to droughts & floods. 🌾🚫 ✅ Water Scarcity – Less clean water in many areas. 🚱 ✅ Health Problems – Heatwaves, diseases, and air pollution cause illness. 🤒 ✅ Climate Refugees – People forced to leave homes due to floods or droughts. 🏚️🚶‍♂️
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Economic enviromental Impacts 💰📉
✅ Damage to Infrastructure – Floods and storms destroy roads & buildings. 🏗️🌊 ✅ Loss of Jobs – Farming, fishing, and tourism suffer. 🌾🐟🏝️ ✅ Higher Costs – Governments spend billions on disaster recovery. 💸🏥 ✅ Energy Demand Rises – More air conditioning needed in heatwaves = higher costs. 🔥⚡
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Nature suffers
Nature suffers – More disasters, rising seas, and habitat loss.
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🚨 People suffer
Food, water, and health problems increase.
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🚨 Economies suffer
Damage to businesses, homes, and jobs.
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How Climate Change is Managed Through Adaptation 🌍🔧
🌊 Sea walls & flood defenses protect against rising water. 🌾 Drought-resistant crops & smart irrigation help farmers. 💧 Water-saving techniques ensure supply during droughts. 🔥 Stronger buildings & warning systems prepare for extreme weather. 🌲 Ecosystem protection helps nature adapt. ✅ Adaptation = Learning to live with climate change! 🔧🌍
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How enchanced green house effect works?
☀️ Sunlight enters Earth’s atmosphere. 🌍 Some heat escapes into space, but greenhouse gases trap some heat, keeping the planet warm. 🔥 Human activities add extra greenhouse gases, trapping too much heat and making the Earth warmer than normal.
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Effects of the Enhanced Greenhouse Effect
🚨 Rising Global Temperatures – More heatwaves and extreme weather. 🌡️🔥 🚨 Melting Ice & Rising Sea Levels – Coastal areas flood. 🏝️🌊 🚨 More Droughts & Storms – Unpredictable weather, stronger hurricanes. 🌪️🚱 🚨 Damage to Wildlife & Ecosystems – Animals lose habitats (polar bears, coral reefs). 🐻‍❄️🐠
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Main Greenhouse Gases & Their Human Sources
✅ Carbon Dioxide (CO₂) – From burning fossil fuels (coal, oil, gas) in cars, factories, power plants. 🏭🚗 ✅ Methane (CH₄) – From cow farming, rice paddies, and landfill waste. 🐄💨 ✅ Nitrous Oxide (N₂O) – From fertilizers, industries, and burning fuels. 🌾🏭
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