The Greenhouse Effect

Greenhouse Gases

• Methane (CH₄)

• Carbon Dioxide (CO₂)

• Water Vapour (H₂O)

Greenhouse Effect Definition

The natural process where some gases in the Earth's atmosphere trap heat from the Sun, which keeps the planet warm enough to support life. 

Greenhouse Effect Process

Sun’s energy: some reflected, most absorbed → heat released → heat trapped by greenhouse gases

• Greenhouse gases emissions have increased over the last 100 years

Human Activities that Increase Concertation of G Gases

• Burning of fossil fuels for heat, electricity and transport

• Deforestation

• Driving vehicles

• Farming → Cows → Methane

Global Warming

Rise in Earth’s average temperature due to human greenhouse gas emission

• Causes climate change

Climate Change

Long term shifts in average weather patterns and temperature

Effect of Climate Change

• Melting ice caps

• More severe weather e.g. flooding

• Habitat loss

• Health risks

What Can Individuals Do?

• Walk, cycle or public transport

• Have solar panels

• Reduce food waste

• Shop local

What Can The Government Do?

• Promote renewable energy e.g. wind

• Enhance energy efficiency

• Support climate adaption