Greenhouse gases
What is the most common greenhouse gas?
What is Carbon dioxide (CO₂)
Name one human activity that increases greenhouse gases.
What is burning fossil fuels / deforestation
What does the greenhouse effect do to Earth’s temperature?
What is It keeps Earth warm enough to support life.
What tool do scientists use to see past CO₂ levels?
What are Ice cores
Name two other greenhouse gases besides CO₂.
What is Methane and water vapour (accept nitrous oxide too)
How does driving petrol cars contribute to climate change?
What is releases CO₂ into the atmosphere.
What happens to energy from the Sun after it reaches Earth?
What is some is absorbed, some is reflected, and some is trapped by greenhouse gases.
What does a rising global temperature graph suggest?
What is the Earth is getting warmer (global warming)
Where does most methane come from?
What is Agriculture/livestock (e.g. cows burping)?
Why does cutting down forests affect CO₂ levels?
What is Trees absorb CO₂, so cutting them down increases CO₂ in the air.
How do greenhouse gases trap heat?
what is absorb and re-radiate infrared radiation.
What is one sign of climate change in nature?
What are Melting glaciers, sea level rise, more extreme weather
Why is water vapour considered a feedback greenhouse gas and not a forcing one?
What is it increases as temperature rises, amplifying the effect rather than starting it.
What is one solution to reduce greenhouse gas emissions?
What is use renewable energy, plant trees, eat less meat, etc.
What would happen without the greenhouse effect?
What is Earth would be too cold for life as we know it.
What does climate modelling help scientists do?
What does climate modelling help scientists do?