It might be a little to cliche to talk about it, especially in a talk, as many people feel, but in actual fact, that is the harsh reality.
It is going to come, and we cannot escape for sure.To put it short: Climate change is mainly the increase in carbon dioxide emissions, leading to raising atmospheric temperatures, which causes the earth surface to heat up further, resulting in the melting of the polar ice caps, bringing about a huge raise in sea levels.
So with the raise of sea levels, it basically implies that Singapore, being an island nation, is in danger of becoming Atlantis, a submerged city.
And the carbon dioxide emissions arise mainly from the burning of fossil fuels to provide electricity, which is continuously in high demand. And that, is an addiction we have to STOP. Furthermore, with recent oil spills near and far, it is shown that oil is not a clean energy source for both electricity and cars, and it pollutes the environment.
So to curb this addiction, we just have to turn to a simple alternative- renewable sources, such as:
- 'Wind' energy
- Geothermal energy
- Biomasses
- Solar energy
The talk emphasised more on the photovoltaic cells (PV cells), which are currently under much research following the local government's focus on solar energy.
To put a long story short, there are mainly a few types of PV cells- the single-crystal ones; polycrystalline ones; amphorous silicon ones; and dye-sensitized ones. And with all these technology available to us, it is once again up to our generation to make use of these for a sustainable future for not only Singapore, but also the world.
We also learnt about energy storage, such as Lithium (Li)- ion batteries, and how we are able to create an efficient battery for electricity-run cars, and other future inventions. However, the production cost of these currently is way too high for the ordinary folk to afford, and that, should be the first problem we must tackle as innovators.
Peugeot car powered by Li-ion batteries
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