The carbon footprint and its reduction Flashcards – AQA GCSE Combined Science: Trilogy (8464) — Chemistry — Higher

Which two major greenhouse gases can be targeted to reduce a carbon footprint?

Carbon dioxide and methane.

What are four ways to reduce carbon dioxide emissions?

• Use less fossil fuel.
• Improve energy efficiency.
• Switch to energy sources that release less or no carbon dioxide during use.
• Capture or store carbon dioxide.

What are three ways to reduce methane emissions?

• Limit leaks from gas production and transport.
• Reduce methane released from landfill and waste.
• Change agricultural practices that produce methane.

What financial and technical barriers can limit carbon-footprint reduction?

Actions can be expensive or require new technology or infrastructure.

What changes in people's practices may be needed to reduce carbon footprints?

Changes in consumer behaviour or farming methods.

What effects on employment or industry can limit carbon-footprint reduction measures?

The measures can affect jobs or industries.

What limitation can affect where carbon-footprint reduction measures are applied?

Some measures can be difficult to apply everywhere.

What is the carbon footprint of a product, service, or event?

The total amount of carbon dioxide and other greenhouse gases released because of it across its full life cycle.