Tag Archives: environment

On the Climate Change Doom and Gloom

I was insomniac for the last three months.

See, if the world is inevitably inhospitable for the humans in the next decade, why should I put so much effort on my college studies? I kept on being reminded in my class about how the doomsday is going to happen during my lifetime. No matter what I do, I probably can’t save my country in South East Asia from sinking due to the global sea level rise. Also, the future generation is going to suffer more, so why should I give birth to new ones? Why add to the population if the world can’t handle it? I felt so alone because I don’t think people close to me understand my concerns. I’m overwhelmed and depressed – and it’s all because of climate change.

What if we lose all of this? (Image: Syakirah Zainal)

Many people are actually familiar with this feeling. There is even a scientific term being widely used to describe these blues.

It’s called eco-anxiety.

What is eco-anxiety?

Robert Gifford,  a professor of Psychology in the University of Victoria described eco-anxiety as “a kind of fear what’s next.”

“The fear that nature is changing permanently or at least permanently within the lifetime of the people who are alive,” he said. “Fear for children.”

People who are experiencing this often feel alienated because we are not used to blaming climate change for our mental health problems. We have seen unfortunate individuals fleeing from civil wars caused by scarcity of natural resources in their areas. They lost their homes, families, and the ability to work. We can imagine them being stressed out and depressed. But what we don’t usually understand is, eco-anxiety affects fortunate people too, i.e., people in first-world countries with no war.

This is because the world is a complex network of systems. Whatever affects one system would definitely affect another; news of extinction of floras and faunas, and sufferings all over the world will reach us at least once in our lifetime. With more understanding of what it really is and personally experiencing it, we can’t help but worry if this problem is bigger than we thought.

Does that mean we should stop spreading climate news?

This is a worse option. Everyone needs to be educated to make an effective change. We must accept the reality of climate change, and we should also acknowledge the fear that comes with it. Kim Knowlton, a senior scientist from National Resources Defense Council perfectly summarised this in the video below: 

https://www.youtube.com/watch?time_continue=91&v=gd4465GfAf4

I also started to find hope when I talk to others about this. Some may listen, some may take it with a grain a salt. But hey, at least they are hearing about it. We should always focus on hope. When the network for change is strong, we’ll have more impact on a cleaner environment. Getting involved is great because I can see that people care and I’m not doing this alone.

I know this. Because I sleep better now.

Syakirah Zainal

Renewable Energy…How About Poop?

Yes, you read that right. In a recently published paper, researchers turned human waste into a carbon-rich material, which they found produced enough energy when burned to be considered a potential energy source in the future.

Human waste is typically thought of as unsanitary and harmful, as it has the potential to carry pathogens and transmit diseases. However, it is also composed of high levels of carbon, so after being processed, it can actually be turned into a carbon-rich coal-like material called hydrochar. This method of processing is called hydrothermal carbonization (HTC), and does not generate any hazardous by-products. It heats the wet biomass, dries it by removing most of the water content, and sterilizes the product by degrading most of the micro-pollutants.

This file is licensed under the Creative Commons

The produced hydrochar can be turned into pellets (as pictured) and used as a biomass fuel. (Photo Source: © Kapilbutani and made available under a Creative Commons Attribution-Share Alike 3.0 Unported license.)

Human waste is typically treated either chemically or biologically. However, many developing countries have difficulty accessing these treatments, making it difficult to handle and sanitize large amounts of human excreta.

One way of reducing it is using it as a soil fertilizer. Human excreta, specifically feces, have actually long been used as a fertilizer, as it contains key plant nutrients such as nitrogen, phosphorus, and potassium. Humans have repurposed poop before, so why not use it as an energy source? The study found that the amount of energy released as heat from the combustion of hydrochar was high enough to potentially be used as an energy source. If this method is perfected, it would be tackling two problems at the same time – waste and energy.

A man pouring fertilizer onto a field to dry. (Photo Source: © Ahmad Masood / Reuters)

With our climate rapidly changing, it is important to develop new methods of gathering usable forms of energy that are both renewable and sustainable. In my opinion, using human excreta as a potential biomass fuel is very smart, as it is cheap, readily available, can help treat and reduce the amount of human waste in developing countries, and can possibly be used as a sustainable and renewable form of energy in the future.

– Kristy Ip