Climate 2.2 Anthropogenic factors contributing to climate change

Explain what is the greenhouse effect.

• Shortwave radiation from the sun is absorbed by the earth's surface, and some is reflected by clouds, while longwave radiation is emitted back into space.

• The greenhouse effect occurs when the earth absorbs all incoming solar radiation without re-emitting any back into space.

• Some longwave radiation is absorbed by greenhouse gases and re-emitted back onto earth, keeping the earth warm.

• The greenhouse effect is a process where the earth's surface cools down rapidly after sunset.

How does the earth remain warm in the day and at night?

• Through shortwave radiation from the sun during the day and longwave radiation emitted from the earth at night, re-emitted by greenhouse gases.

• By absorbing heat from the core of the earth both day and night.

• Through the reflection of sunlight by the moon at night and solar panels during the day.

• By trapping heat in the atmosphere using artificial satellites.

Explain what is the enhanced greenhouse effect?

• The enhanced greenhouse effect refers to the increase in global temperature due to the increase in greenhouse gases in the atmosphere caused by human activities.

• The enhanced greenhouse effect is a natural process that has no impact on global temperatures.

• The enhanced greenhouse effect occurs when the ozone layer is depleted, allowing more sunlight to reach the Earth.

• The enhanced greenhouse effect is caused by the cooling of the Earth's surface, leading to a decrease in greenhouse gases.

Describe how urbanisation contributes to the enhanced greenhouse effect.

• Urbanisation leads to increased deforestation, which reduces carbon absorption.

• Urbanisation results in the burning of fossil fuels for energy, contributing to greenhouse gas emissions.

• Urbanisation has no impact on greenhouse gas emissions.

• Urbanisation promotes the use of renewable energy sources, reducing greenhouse gases.

What are the two anthropogenic factors leading to the enhanced greenhouse effect?

• Burning of fossil fuels and Deforestation

• Natural gas emissions and Ocean acidification

• Solar radiation and Wind energy

• Volcanic eruptions and Soil erosion

Describe how industries contribute to the enhanced greenhouse effect.

• Burning of fossil fuels to produce energy for machinery and factory processes

• Implementing sustainable practices to reduce emissions

• Increasing the use of renewable energy sources

• Improving energy efficiency in production

Describe how agricultural activities contributes to the enhanced greenhouse effect.

• Burning of fossil fuels to produce energy for farm machinery

• Planting trees to absorb carbon dioxide

• Using organic fertilizers to reduce emissions

• Implementing crop rotation to improve soil health

Describe how deforestation contributes to the enhanced greenhouse effect.

• Large-scale removal of forests increases the number of trees that absorb carbon dioxide through photosynthesis.

• When trees are cut down or burned, the stored carbon is released back into the atmosphere as carbon dioxide.

• Clearing of trees has no effect on soil exposure to sunlight.

• Tropical deforestation contributes to 5% of greenhouse gas emissions.