In recent years, more and more countries have been using renewable energy sources. By 2030, Portugal, Denmark and Austria aim to generate electricity only from renewable energy sources, while Greece aims to reach 80% in the same year.
At the same time, in the context of environmental protection, the European Union and the United States are reducing their carbon dioxide emissions, while China and India, on the other hand, emit the highest percentage of pollutants in the world.
As a result of emissions from human activity , climate change is coming. The consequences of climate change are global warming, melting of ice and rising sea levels. Nevertheless, there are still countries or even people who believe that climate change does not exist and is not a real and substantial problem.
With regard to energy sources, it is worth mentioning that Greece’s primary energy source is oil, but most countries in the European Union also use fossil fuels.
