Daily Archives: April 17, 2022

Climate change and human health

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While we often think about the environmental effects of climate change, we don’t always consider how those environmental changes can affect human health.  Global warming is one of the most prevalent issues associated with climate change and while many people have noticed the effects of this issue, not many know the health issues that come from this increased global temperature. According to the EPA, unusually hot summers with high temperatures and heat waves have become more and more common over the years.  With this increase in hot weather comes an increase in heat related deaths. For instance, the rate of heat related deaths in the United States has increased from 1979-2018.  In 1979, the rate of deaths was 0.240 per million people.  In 2018, that increased to 1.635 per million people, making the total change 1.395 per million people and making the percent change between 1979 and 2018 a 581.25% increase.  With a growth factor of 6.81, you can see the large increase in deaths caused by heat in the last 40 years alone.  Climate change, especially global warming, can have an extreme adverse effect on human health, which we are already starting to see.  If we don’t do something to keep the global temperatures from becoming even more extreme, we can expect to see the rise in heat related deaths become even higher.

 

https://www.epa.gov/climate-indicators/climate-change-indicators-heat-related-deaths

Fast Fashion’s Effect on Environment

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Since the Pandemic, shopping online has increased tremendously.  With that being said, it’s not uncommon that many people try to find the cheapest “dupes” of high quality clothes.  The fashion industry itself consumes one tenth of the water used industrially to clean products and run factories.  Thinking about the total amount of water used to produce one cotton shirt that would be about 3,000 liters of water used.  Not only is the water usage a big problem but fast fashion is responsible for higher carbon emissions than both international flights and maritime shipping combined.  Within the next decade, an increase of 50% of carbon emissions is expected if we continue this trend.

A 2017 report from the International Union for Conservation of Nature had stated 35% of all micro plastics in the ocean come from synthetic clothing like polyester.  Since Fast Fashion is in high demand of products in a short period of time, the amount of waste emitted into the air is heavily weighed upon fashion, with 1.2 billion tonnes of carbon being emitted due to the fashion industry.  This is why it’s so important to stop shopping at stores such as Shein and forever 21 producing an exuberant amount of cotton and polyester, which not only puts the workers and farmers at harm when using toxic pesticides to grow the products, but many workers get injured due to the poor working conditions these fast fashion companies put their employees in.   Thrifting old garments is an excellent way of decreasing the amount of carbon emission as well as lowering the water usage for production.

resources:

https://psci.princeton.edu/tips/2020/7/20/the-impact-of-fast-fashion-on-the-environment

Fast Fashion and Its Environmental Impact

Fast Fashion’s Environmental Impact: The True Price Of Trendiness

Carbon Emissions

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The United States emitted a grand total of 5,222 million metric tonnes of CO2 in 2020, which was an 11% decrease following the height of the COVID-19 pandemic, but this downward trend would prove to be only temporary. However, in comparison to 2005 CO2 emission levels, there was a 21% decrease, which I found to be interesting. In 2020 alone, carbon dioxide accounted for  ~79% of GHG emissions, while nitrous oxide, methane, and various fluorinated gases made up the other 21%. 27% of these emissions were caused by transportation alone, electricity contributed to 1/4 of these emissions, and the rest were sectioned off into industry, commercial usage, and, unsurprisingly, agricultural energy consumption. Ten years prior, the overall emission measurement (circa 2010) fell around 5,594 million metric tonnes, which while not a huge difference, really puts things in perspective. If we could somehow figure out a balance between all the above aspects of everyday life, and managed to cut back on energy consumption in a realistic yet sustainable way, it would be for the better.

 

 

 

 

sources:

https://www.epa.gov/ghgemissions/inventory-us-greenhouse-gas-emissions-and-sinks

https://www.statista.com/statistics/183943/us-carbon-dioxide-emissions-from-1999/

US Energy Consumption

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The US in 2018 had a record high energy consumption of 101.3 Quadrillion British thermal units (Btu) then when comparing this to the US consumption of energy in 2020 there was a decrease to 92.94 quadrillions British thermal units. When doing the math this was actually a decay factor of 0.0825. I found that this was interesting that our energy consumption in the US actually decreased during the Covid shutdown. However when I think about it a large part of energy consumption comes from office buildings, factories, and such which were shut down during this time. Reducing your energy consumption is important on an individual level and can have a large effect on your carbon footprint.

Sustainable Carbon Emissions

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Carbon Dioxide emissions are crucial to address when concerning climate change and global warming. Industrial Revolutions have been occurring for about 200 years and are still happening in countries today. Carbon emissions contribute to the overall heating of the Earth, the IPCC has made goals to try to limit heating to 1.5 degrees Celsius over the pre-industrial level. If our emissions continue on the trend they’re on we will pass by the 1.5-degree mark quickly. According to the Mauna Loa Record Keeling Curve in 1960 the carbon concentration levels were at about 315ppm fast forward to 2020 where it reached about 415ppm. That’s an overall change of 100ppm, 32% increase, growth factor of 1.32, and an average rate of change of 1.67ppm/yr. It’s difficult to enforce and make policies to ensure fair and equal emission standards. There’s a lot of debate over levels and who should be held responsible for the emissions and countries have to be able to industrialize as well. But there is a lot of promise in the renewable energy field. Many innovations, jobs, and decreased use of carbon would result in helping decrease the concentration levels from contributing to the warming of the Earth.

https://scrippsco2.ucsd.edu/graphics_gallery/mauna_loa_record/mauna_loa_record.html

CO2 Emissions Rise

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Continuing a blog topic from 2 posts ago, I wanted to zero in on the rise in CO2 emissions during my lifetime. I was born in 2002, where global CO2 emissions were 26.04 billion tonnes. Fast forward to our most recent data, with the 2021 global CO2 emissions were 36.4 billion tonnes. That’s a total change of 10.36 billion tonnes. The percent change of that data would roughly be a 40% (39.78%, to be exact) increase with a growth factor of 1.4.

While there has been some fluctuation in recent years due to the COVID-19 pandemic in 2020, on average the increase in emissions has remained steady. It’s scary to think about, but the total change, percent change, and growth factor could all possibly be even larger if the pandemic hadn’t happened. It’s important to reduce our personal, every day CO2 emissions, and hopefully we’ll live to see a time where the CO2 emissions have a decay factor instead.

Sources:

https://www.statista.com/statistics/276629/global-co2-emissions/

Livestock and Sustainability

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As a society, we eat a lot of food but are only beginning to understand the bi-products of producing meat on such a large scale. Emissions related to the livestock industry are carbon dioxide (CO2), nitrous oxide (N2O), methane (CH4), and ammonia (NH3). Livestock and the food industry are a big contributing factor to climate change and I think that there isn’t enough attention to how the industry is impacting the environment. Due to such a high demand for cattle, researchers believe that the increased cattle rearing will help produce 565 gigatons of carbon dioxide by 2030.  The livestock industry is responsible for 68% of enterogenic nitrous oxide emissions,  64% of total ammonia emissions, and 35–40% of methane emissions worldwide. Methane is a 23-1 greater potential to warm the planet compared to carbon dioxide. I want to look into this topic more because I feel like this is a big issue and I am not very familiar with it.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6518108/#:~:text=Livestock%20emit%20almost%2064%25%20of,40%25%20of%20methane%20emissions%20worldwide.

Offshore Wind Turbines in California

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The state of California is home to 840accessible miles of coast line to the Pacific Ocean. In recent years, as technologies and climate change awareness have increased, the state of California have made a conscious effort to enhance and improve their usage of the coast in its application of renewable energy sources. The most effective form of renewable energy that California has used is taking advantage of the offshore wind. The major tool to capture off shore wind to harness renewable energy comes in the form of wind turbines. Most of which can be built to stand in shallow ocean water. With Californias pacific being much deeper, the turbines must be constructed on to floating stands that are able to absorb currents and other sorts of natural causes that otherwise may alter their movements.

In 2018, the 100 Percent Clean Energy Act was implemented into the state of California. This increased California’s goal of renewable energies to 60% by 2030 and a hopeful 100% by 2045. With oil resources becoming harder to capture and other things such as gas increasing in price, renewable energy sources are the trends of the future. One thing that will not change anytime soon is there being wind off of California’s coastline. If California gets to its goal of 100% by 2045, there will be no energy sources that produce carbon in hopes of altering the curve we viewed a few weeks ago.

 

https://www.energy.ca.gov/programs-and-topics/topics/renewable-energy/offshore-renewable-energy

 

https://www.energy.ca.gov/sb100

Sustainability and Energy Conservation

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One of the first things that has come to my mind on the topic of sustainability is the concept of energy conservation.  This can be accomplished in many ways, and through many different forms.  For example, some ways to conserve energy could be turning off the lights when you are not home, turning down the heat in the winter at night time or turning down the air conditioner om the summer when you go to bed.  These simple things can make a large impact on your own personal footprint.  For the purpose of this blog we will focus on the amount of energy that can be saved by simply turning off the lights.  Lets say that a incandescent light bulb is graded for 60 watts.  This light bulb will use approximately .06 kilowatts of energy per hour while it is on.  Over time this adds up not only in energy use but also in money to pay the bill.  If you were to turn off that bulb there would be a 100% decrease in energy obviously, with a decay factor of 1.0.  This seems like it is so obvious, yet not enough of us are doing this.  In the long run turning off your bulb is not only incredibly helpful for the environment but also for your wallet.  When thinking about sustainability it is the little things that we have to do that will make an impact.  If we are able to do the small things like I have listed above it will be beneficial for all.

Greenhouse Gases and our Sustainability Efforts

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Greenhouse gases contribute to many dangers in sustainability efforts and these greenhouse gases have been closely monitored by the EPA, with the government organization monitoring the rises and sinks of greenhouse gas emissions and the biggest contributors to greenhouse gas emissions in the United States.  I believe that sustainability efforts should first and foremost look to reduce the amount of CO2 and other greenhouse gas emissions that we are placing into the world.  The US emissions totaled 5,222 million metric tons of CO2 equivalents in 2020.  This is an 11% decrease from 2019 with the total change from 2019 to 2020 decreasing from 5796.42 million metric tons to 5222 metric tons.  This resulted in a 574.42 million metric ton decrease in CO2 emissions.  This was largely due to the pandemic  as well as the continued search for more renewable and sustainable forms of energy.

One interesting topic I found regarding sustainability GHG emissions, especially CO2 emissions is electric cars.  While electric cars are better for the environment, the deciding factor on the sustainability is how much is required to produce these electric cars.  An all electric Chevrolet Bolt produces 189 grams of CO2 for every mile, as opposed to a gas fueled Toyota which produces 385 grams of CO2 per mile.  However the challenge comes in the production of electric cars and the energy grid.  It is important to understand that just because a car is electric might not mean it is as sustainable as it seems.  This issue concerning electric cars relates back to my main point earlier about greenhouse gas emissions.  We as people need to look to find the best possible solutions to decrease the harm we are doing to our planet.

 

Works Cited:

https://www.epa.gov/ghgemissions/inventory-us-greenhouse-gas-emissions-and-sinks

https://www.epa.gov/ghgemissions/sources-greenhouse-gas-emissions#colorbox-hidden

https://www.epa.gov/greenvehicles/electric-vehicle-myths

https://www.nytimes.com/2021/03/02/climate/electric-vehicles-environment.html