Examine the information above relating to energy consumption in Ireland by fuel source in 1990 and in 2015 and answer each of the following questions - Leaving Cert Geography - Question A - 2017

In 2015, the percentage of energy consumed that was generated from coal decreased to 16.9%. This reflects a shift towards more diverse energy sources as well as possibly more sustainable options.

Fossil fuels are natural resources formed from the decomposed remains of ancient plants and animals over millions of years under heat and pressure. They include coal, oil, and natural gas, and are primarily used for energy production. The burning of fossil fuels releases carbon dioxide and other pollutants, contributing to climate change.

To calculate the percentage of energy consumed in 1990 that was generated from fossil fuels, we consider that fossil fuels generally include coal, oil, and gas. In 1990, the figures were: Coal (41.7%), Oil (15.2%), and Gas (9.9%). Therefore, the total percentage from fossil fuels is:

41.7 + 15.2 + 9.9 = 66.8 ext{%}

Thus, 66.8% of the energy consumed in 1990 was generated from fossil fuels.

Renewable energy refers to energy obtained from sources that are naturally replenished. These include solar, wind, hydro, and geothermal energy. Unlike fossil fuels, renewable energy sources produce little to no greenhouse gas emissions during operation, making them more environmentally friendly and sustainable in the long term.

One significant reason for the increase in the use of wind as an energy source is the growing awareness and urgency to combat climate change. Governments and organizations worldwide are investing in clean energy technologies, and wind energy is seen as a key player in reducing greenhouse gas emissions. Additionally, advancements in technology have made wind turbines more efficient and cost-effective.