Tag Archives: sustainability

Human Impacts

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It is the human interactions with the earth’s natural systems that are causing the negative change. Of course, to maintain a healthy environment we must use some of the earth’s resources; although, it is the overuse that is cursing the problems. The global issues we are facing are a direct cause of the style choices we humans are making to live a comfortable, consumerist life.  We are currently in a state of overshoot, meaning we are using more resources than the earth can produce in a year. In 2018, the ecological footprint was 2.4 times greater than the biocapacity. Essentially, in 2018, we were using 2.4 times the amount of resources the environment could produce in a year. Calculations can be figured out by dividing the footprint by biocapacity.

It is time to make small changes to our lifestyles to drastically slow the rate of the earth’s change and maintain the Earth for future generations. Some simple changes are rooted in expanding our knowledge, such as learning what can be recycled and composted. Many individuals think that plastic and paper can be thrown in the now common, zero sort recycling. This belief is not true; only particular types of plastics can be recycled if they are clean. Composting will also reduce the amount of waste that is sent to landfills and will promote healthy soil and crops. Along with these changes, individuals can limit laundry and wash in cool water to cut down on electricity usage. The changes mentioned above are minor; but if every person began to practice them, we could seriously reduce negative change. In a consumerist society, it seems hard and maybe impossible to reduce our intake of products, yet it is very possible.

 

The importance of global awareness

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One aspect of global learning that I think is important to focus on is global awareness. Global awareness is important because it is the human understanding of the natural systems of the earth and human societies and how they impact each other. If we can make more people aware of their global impact, then they might take more action to make a sustainable world. For example, the Earth can only produce so many natural resources that are renewable and I feel like everyone does not know that. If humans are using too much of these non-renewable resources then the planet will run out these resources much more quickly. An example of a nonrenewable energy source is oil or petroleum. This is a resource that countries produce and constantly use (i.e. at the gas station) and we are using more than what the earth can continuously supply. In 2020 we were averaging oil production of 88.4 million barrels of oil per day. At this extremely high consumption rate, the earth will run out of oil in about 47 years. This is concerning because we use oil as a nonrenewable energy source for just about everything. Hopefully technology can advance to the point where renewable energy is much more commonly used. I feel like this could be possible with the increase of electric cars instead of ones powered by petroleum. If more people knew about their impact then they may increase their level of global awareness and want to change their daily actions. Every little bit of change can help try to decrease the negative impact that non sustainable actions have on the health and future of the planet. 

source : https://www.statista.com/statistics/265203/global-oil-production-since-in-barrels-per-day/#:~:text=Global%20oil%20production%20amounted%20to,at%20around%2095%20million%20barrels

Importance of Global Awareness

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Seeing that this is the final blog of the term, I reflect back on everything that I have learned throughout this term regarding sustainability and the associated mathematics. I never thought that something as basic as percentages or ratios would play such a big role in sustainability. Consider, the percentage of contamination of a certain substance. Or, the percentage of a substance that is being wasted due to one’s lack of accountability when it comes to sustainability. Learning about energy flow and all the different many different forms of energy was really interesting. It was not until taking this class that I learned that energy has a unit, the unit being Quad. Another important factor that needs to be considered not only through a sustainable lens, but through many lenses in life is precision. If mathematicians are not precise about their measurements and data sets for sustainability related entities, there could be outcomes that are detrimental to the environment. Learning about how many different variables are at play for climate change are overwhelming. But, learning about them individually and ways that we can play our part has been helpful. One of the most notable things that I take away from this course is how large my carbon footprint has been throughout my life. From here on out, I aim to consider the ways in which I can make my carbon footprint smaller for the benefit of the environment. This course has taught me so many new ways that I can think about sustainability and how easy it is to take sustainable action. If we all play a small part in becoming a sustainable nation, our earth will be more likely to succeed.

Sustainable Ways

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For some reason the audio on my video is not working. Nevertheless, this video shows all the ways that my roommates and I are attempting to be more sustainable in our apartment. The first clip shows that we try to take shorter showers and turn off the water as we brush our teach. The next clips exhibits that we keep doors and windows open opposed to using electricity for a fan or air conditioner. The third clip displays all of our reusable cups that we use opposed to using one-use plastic water bottles. The last clip shows our washer machine that we use using cold water opposed to hot water because it’s better for the environment.

RPReplay_Final1653318294

Tidal Energy

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Tidal energy has the potential to be the future for harvesting energy. Tidal power is made through the natural cycles of the world’s tides which is caused by the gravitational pull of the moon and other celestial bodies. Tidal energy could function as a significant replacement for traditional electric production from coal. With tidal energy, it is all about finding the most effective location for capturing the tide. The most productive spots are where the range between high tide and low tide is the largest. There are three ways in which tidal energy can be captured; tidal turbines, tidal lagoons, and tidal barrages. Tidal energy is sustainable, renewable, eco-friendly, and is more effective than wind power systems. Like many other new energy routes and potential solutions to environmental issues, there are a lot of barriers to consider when implementing them that slow down the process.

 

https://www.pnnl.gov/explainer-articles/tidal-energy

Geothermal Sustainability. Advantages and Disadvantages

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Geothermal energy has become more popular in the past few decades as scientists race to find more sustainable forms of energy to fix the climate crisis. Countries like Iceland have been able to use their abundance of geothermal energy in order to power a large portion of their country. One of the many problems of other forms of energy like Solar power and wind power is that the amount of energy produced is based on the weather. You don’t get any power for wind turbines if there is no wind. And for solar power, you never get any power at night. This is one of the benefits of geothermal energy. There is essentially a limitless supply of energy in the earth’s core, however, it is not always coming out at the same rate. Financially, however, geothermal is quite effective. It is a large supply of energy that is just waiting to be harnessed. Perhaps one day we will figure out a way to harness geothermal energy more effectively, and it could be a better way of sustaining our planet.

 

Works Cited:

http://www.withouthotair.com/

 

The Power of Hydro Electricity

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For this blog post, I chose to present information on Hydroelectric Power. It’s one of the oldest forms of renewable energy, which began use in 1950.

Hydroelectric power’s source of power is water and plants are usually located on or near a water source. The volume of the water flow and the change or fall in elevation is often referred to as head. The head from one point to another determines the amount of available energy in moving water. The greater the water flow and the higher the head, the more electricity a hydropower plant can produce.

There are about 1,450 conventional and 40 pumped-storage hydropower plants operating in the United States. The average lifespan of a hydropower facility is 100 years.

In 2021, hydroelectricity accounted for about 6.3% of total U.S. utility-scale electricity generation and 31.5% of total utility-scale renewable electricity generation.

Hydroelectric energy is sustainable because it relies on and uses the environment, benefits society, and can benefit the economy. It’s an affordable form of renewable energy that is more affordable than other renewable energy sources. Another reason why it’s sustainable is it’s been used for a long time.

https://www.eia.gov/energyexplained/hydropower/https://

www.energy.gov/eere/water/hydropower-basicshttps://

www.nrel.gov/docs/fy04osti/34916.pdf