Fossil Fuels: Explaining Humanity's dependence on Fossil Fuels
11 minute read
Updated on Wed Mar 03 2021
Good solutions come from a deep understanding of the problem.
What are fossil fuels?
These ancient fossil materials contain a lot of potential chemical energy. We can mine and burn them to release this energy for our own use, such as driving cars or generating electricity. Unfortunately, this releases CO₂, one of the greenhouse gases causing climate change.
How do power plants work?
Why use coal & gas?
The system that brings electricity to you is called the power grid or just the ‘grid’. The grid is sensitive to how much energy is produced at any given time, as supply needs to match demand almost exactly.
Why use oil?
Oil can be considered a way to store energy. For example, it can just sit in a car’s tank until it is burnt and turned into kinetic energy through a motor to make the car move.
Electric cars are now available. However, to use electricity instead of oil, we not only need electricity but also a way to store it in the car. For this we often use batteries. We will talk much more about this in a later chapter.
Electric cars work well because they can carry a large battery. However, at present, the batteries that would be needed to replace oil-based fuels in airplanes would be too heavy for the plane to fly any sensible distance.
Can we get away from fossil fuels?
To get away from fossil fuels, we will need innovation. Contrary to popular belief, many of the technologies we will need do not exist yet. Getting away from fossil fuels won’t be easy, but there are lots of promising developments in clean energy technologies.
Unfortunately, we currently don’t have the technology to store enough energy for when the sun doesn’t shine. Still, the falling price of solar PV energy can serve as motivation to encourage innovation.
We’ll start this journey by carefully considering nuclear power in the next chapter.Next Chapter