Unit 4 – Climate Change & Greenhouse Gases

This unit looks at Climate change and the effects of greenhouse gases. The background reading introduces the concepts tested in:

Activity 1 - Climate Change Puzzle
Activity 2 – Cutting greenhouse gas emissions
Activity 2 - Datasheet
Activity 2 - Table with examples

Background – An introduction to the Greenhouse Effect and Climate Change.

What is Climate Change?

The raising of the earth’s temperature is having huge effects on weather and climate. Scientists do net yet agree on what will happen in future years, but already they know that the polar ice caps are melting. This has caused sea- levels to rise. It is thought that the overall temperature of the earth will be warmer, leading to more storms, floods, droughts and sudden changes in weather.  Ireland, being an island, could be in danger from all of these occurances.

What causes Climate Change?

Over the billions of years that life has been on the planet, the climate has always been changing. In the beginning of time it was really important that gases warmed up the earth, otherwise, it would not be suitable for plants or animals to live here.

In recent decades, however, through human activity, the rate of climate change has been speeded up. Burning fossil fuels for energy is the major world contributor to climate change as it releases vast amounts of greenhouse gases, mainly carbon dioxide. Other sources include exhausts from cars and other vehicles, cutting and burning trees, and emissions from livestock.

How can we combat Climate Change?

Governments all over the world have been working on strategies to try and reduce the impact of climate change. It is really important that all countries reduce the amount of greenhouse gas emissions. Using less energy or using energy only from renewable sources, means less greenhouse gases are emitted. You can help by cutting down on energy you use and in other ways. See our top tips for saving energy.