Climate Change?

Our Climate

When we talk about climate, it is important to know just what climate is. Although weather and climate appear closely related, they are in fact two very different concepts. Weather describes the meteorological conditions at a given time and place. Climate, on the other hand, describes the meteorological conditions, including temperature, rain and wind that characteristically prevail in a particular region over a period of time, typically 30 years.

By collecting weather information all around the country every hour, and by analysing these records over the 30 year period, it is possible to assess how the climate is behaving. Currently, Ireland's climate tends to be warm in the summer, around 16 degrees Celsius, and cool in the winter, around 5 degrees Celsius. See more information on Ireland's climate on the Met Éireann website. 

Climate change is happening, and recent extreme events, such as Storms Ellen and Francis in August 2020 have shown that we are vulnerable to its impacts. 2019 was the ninth consecutive year with temperatures in Ireland above normal. The winter of 2018/2019 was the warmest winter on record in Ireland (119 years) (CCAC, 2020). 

Our Planet

Climate change is a significant change in the average weather or climate that a region experiences. Climate change can be caused by natural factors such as variations in sunlight intensity. However, the term climate change is now generally used to refer to changes in our climate due to the build up of greenhouse gases (GHGs) in the atmosphere. This build up of GHGs is caused by excess emissions due to certain human activities, like burning fossil fuels for energy, transport and heating.

© Department of the Environment, Community and Local Government

Our Planet
© Department of the Environment, Community and Local Government

Our Planet

Climate change is a significant change in the average weather or climate that a region experiences. Climate change can be caused by natural factors such as variations in sunlight intensity. However, the term climate change is now generally used to refer to changes in our climate due to the build up of greenhouse gases (GHGs) in the atmosphere. This build up of GHGs is caused by excess emissions due to certain human activities, like burning fossil fuels for energy, transport and heating.

© Department of the Environment, Community and Local Government

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By monitoring the climate, we can forecast the likely weather. This is important for many reasons. For example, farmers need to know what kind of crops to sow that suit a certain climate; planners and engineers need to have climate data so that they can design roads, buildings and bridges to resist the anticipated conditions. This is particularly important, as structures that are not designed and built to a high enough standard may be susceptible to damage.

See live weather patterns around the world using this visualiser. 

For more information on climate and weather forecasting, see Met Eireann.

What is Climate Change?

Climate change is a significant change in the climate that a region experiences. Climate change can be caused by natural factors such as variations in solar intensity or volcanic eruptions. However, the term climate change is now generally associated with changes in our climate due to the build up of greenhouse gases (GHGs) in the atmosphere as a result of human activities.

GHG build up is caused by excess emissions from activities such as burning fossil fuels for energy, methane emissions from agriculture, transport, heating and cement manufacture . GHGs let sunlight pass through the atmosphere to reach the earth, but then trap the outgoing energy from the heated surface of the earth like a blanket. This causes a warming of the global atmosphere generally, although it is very hard to anticipate exactly how this will affect climates at more regional scales.