San Francisco 1906

1906 San Francisco

Magnitude: 7.7-7.9

Ignited several fires around the city that burned for three days and destroyed nearly 500 city blocks.  The earthquake and fires killed an estimated 3,000 people and left half of the city’s 400,000 residents homeless.  The largest aftershocks occurred at the ends of the 1906 rupture or away from the rupture entirely; very few significant aftershocks occurred along the main-shock rupture itself.  It generated a tsunami wave only approximately 10 cm in height.

Del Monte (last survivor alive) didn’t remember much about his family’s dramatic escape, but “was told that his mother bundled him up after the shaking stopped and ran out to the street where his father commandeered the rig, which they rode down to the waterfront as flames licked at them from all sides,”. “After being forced out of his home in North Beach after the 1906 Great Earthquake and Fire as an infant, he ultimately witnessed our City’s rise from the ashes more than a century ago seeing it rebuilt better than ever,”.

Rose Barreda: “Many burned-out people passed our house with bundles and ropes around their necks, dragging heavy trunks. From the moment they heard that fatal, heart-rending sound of the trumpet announcing their house would be burned or dynamited, they had to move on or be shot. As the sun set, the black cloud we watched all day became glaringly red, and indeed it was not the reflection of our far-famed Golden Gate sunset.”

After the earthquake had occurred, over 20,000 people were left without a home. The military built 5,610 relief houses to help out the civilians. The houses were packed close to one another, and they charged people $2 a month for rent. Some things that the San Francisco area had to achieve to prevent themselves from another catastrophe, were to redesign so that when it happens, not all buildings would be demolished. They want to issue a standard called shelter-in-place, which means that the house would be damaged, but not enough to where the people cannot live in it anymore.

Climate Zones

Temperature Graph

Precipitation Graph

To start off, what I notice in the tropical region is that the climate seems to be increasing but I wouldn’t say they are increasing drastically.  Over the time periods shown precipitation fluctuates and seems to stay close to the same starting average.  Observing the dry region I notice that the climate fluctuates and the precipitation is decreasing making the land more dry.  The the mid temperate region is increasing in climate over the time periods shown and the precipitation is also increasing.  Although they are not drastic changes.  Looking at the snow region the temperature is increasing but I wouldn’t say it is very consistent.  The precipitation is also significantly increasing.  Finally,  observing the polar region, averages seem to have a pattern to them through each period of time, changing by one degree.  The precipitation is increasing and within the last two time periods it has significantly increased.

 

From my observations I notice more climate change in the colder regions, as well as, the regions with precipitation increased.  Precipitation is usually increased in the snow and polar regions more significantly then the other regions.  They seem to have a pattern each time period and seem to be more sporadic than the other averages from other regions.  Precipitation is increasing in colder zones.  I believe this is because the climate is becoming warmer because of the emissions getting trapped in the atmosphere.  Perhaps, these are the reasons that the ice caps are melting rapidly and places like America and Trump feel like climate change is not present because their region isn’t facing it as prominent as others.

Fishing

The species I chose is salmon.  Ocean wise recommended for consumers are the Atlantic salmon (blue circle brand only) from Norway – Kvaroy and Selsoyvik farms only.  Kvarøy and Selsøyvik reported no escaped salmon for over 10 years. The use of lumpsucker fish to control sea lice necessitates the use of small-mesh netting. This reduces the likelihood of escapes. This salmon is farmed by an open net pen.  Open net pens allow discharge to flow into the environment and have the potential to cause many negative habitat impacts. However, the Kvarøy and Selsøyvik farms are located in open coastal areas instead of fjords where there is less water circulation. .  Along with the Atlantic salmon worldwide which is farmed by the recirculating aquaculture system.  Source of stock is domesticated broodstock for the vast majority of RAS farms. Therefore wild populations are not depleted to source the aquaculture operations.  The contained nature of RAS allows for close control and prevention of potential disease or parasite outbreaks.  About 90-99% of water is typically recirculated after filtration and waste treatment.

Ocean wise did not recommend any of the Atlantic salmon that come from British Columbia, Atlantic Canada, Maine, US, Norway, Scotland, Chile, Faroe Islands, and Worldwide.  All of these salmon are farmed by open net pen.  When open net pen farming is carelessly done it produces waste products (faeces and feed) from the farmed salmon in the pens and is released directly into the surrounding water and settles to the sea floor. These wastes can change the chemical make-up and biological diversity of the seabed around the pens.

Salmon farming comes with issues and concerns as well as advantages.  One issue being the way it is farmed.  Open net-cage salmon farms are a serious threat to the balance of life on the coast, and to wild salmon in particular.  Waste, chemicals, disease, and parasites from the farms pass through the mesh and pollute the surrounding water and seabed. Especially harmful are the sea lice who attach to wild juvenile salmon on their migration out to sea. Too many sea lice can kill the young wild salmon.  Not only is the salmon polluting the waters with their waste they are killing their own species.  Storms, accidents and predators can tear the nets allowing the farmed fish to escape.   Advantages of these methods however, is that it is efficient.  You catch great amounts of salmon to sell and this is ultimately beneficial to our economy.   Although, what’s more important our oceans and the species or our economy?

Sources:

https://livingoceans.org/initiatives/salmon-farming/issues/environmental-impacts-open-net-pen-salmon-farms-benefit-the-ocean

https://seafood.ocean.org/seafood/type/salmon-atlantic/

https://livingoceans.org/initiatives/salmon-farming

 

How Sustainable is BC’s Forestry Industry?

Clearcutting is a forestry/logging practice in which most or all trees in an area are uniformly cut down.

Benefits:

  •  It creates wide, open spaces with lots of sun exposure. This allows the most sunlight to reach tree seedlings that require full-sun conditions to thrive. Clearcutting also creates forest clearings that are habitat for some species of songbirds, deer and elk.
  • Economy of harvest. Clearcutting is the most efficient and economical method of harvesting a large group of trees.
  • Fewer disturbances to the forest floor. By entering a forest to log trees once instead of multiple times in a series of timber harvests, the landowner minimizes disturbance to forest soil.

Drawbacks:

  • They look bad. Until the newly planted trees “green up” a hillside, a clearcut is  not considered appealing to the general public.
  • Habitat disturbance. Clearcutting alters the habitat where trees once stood, and forest wildlife is displaced into new areas.
  • Increased stream flow. Clearcuts allow more water to enter a stream system through underground aquifers, because water is not being taken up and released by trees in a process called “evapotranspiration.” Increased stream flows can lead to increased riparian erosion during high-water occurrences.

Silviculture is the practice of controlling the growth, composition, health, and quality of forests to meet diverse needs and values.

Benefits:

  • It produces abundant raw materials for the industry like timber and paper industry.
  • It increases forest cover which is necessary for the conservation of wildlife.
  • It maintains a perfect water cycle in nature.
  • It prevents soil erosion as the forest cover keeps the topsoil intact.
  • It prevents floods since the forest cover is vast.

Drawbacks:

  • Less vertical diversity within individual forest stands.
  • General lack of snags and over-mature trees.
  • Low diversity of the trees age classes, species, and size.

Selective logging or partial forest removal is the practice of cutting down one or two species of trees while leaving the rest intact.

Benefits:

  • Supports more wildlife by keeping their ecosystems intact.
  • They build up tolerance and resistance to disease and pests.
  • Carbon dioxide that is stored by the trees will regenerate (regrow) faster.
  • Helps the forest grow back faster.
  • Reduces fire hazards and minimizes soil erosion.

Drawbacks:

  • Expensive and time-consuming.
  • Some species will not regenerate (regrow) as fast.
  • More exposure to weather damage such as ice, storms, and fires.
  • Lots of stumps and other tree debris left behind.
  • Removes genetically superior trees, whose seed is needed to keep forest healthy.

In conclusion, I don’t believe that British Columbia’s forestry’s industry is sustainable. From what I have researched about the economy of the industry, demonstrates the difficulty that is involved to satisfy both sides, in terms of the atmosphere and also the economy. British Columbia includes a high demand for forestry merchandise. The popular choice being clear-cutting because of its efficiency isn’t the clear answer here. Clear-cutting isn’t the best choice for each the atmosphere and our economy.

Sources:

https://en.wikipedia.org/wiki/Clearcutting

https://oregonforests.org/clearcutting

https://en.wikipedia.org/wiki/Silviculture

https://en.wikipedia.org/wiki/Selective_logging_in_the_Amazon_rainforest

http://ohsroom12and13.weebly.com/uploads/6/0/4/9/60491981/harvestingtrees.pdf

Ethic of Care and Environmental Ethic

An ethic of care to me is, the ability to be responsive to a certain situation because of a feeling of emotion.

A Individual who is willing to create an ethic of care would be needed, as well as a concern in a particular area.

We would have to be educated about the environment for someone to car for it.  We need to have a strong sense of knowledge if we want to care for something; as caring is connected to our emotions.

If we cared about the environment we would act on certain problems such as climate change.  We wouldn’t just talk about the problem and solutions, we would actually produce a change.  I think this is something that happens in every negative situation that has to do with our environment.  Everyone talks about the problem, explains why it’s a problem, gives us solutions, but doesn’t actually take action.  For example, climate change.  Something so simple to help our world would be to limit the amount of fossil fuels or put out less vehicle emissions but yet nothing’s changed.

The world would be different as we would be more careful and not as careless.  We would take responsibilities of our actions and think before we act.  Although if every single person in the world cared about every problem or subject than we would lose opinions.  We would lose the perspectives of others.

We should adopt an ethic of care towards the environment.  There would be less people struggling in the world and even our earth wouldn’t be at risk if people just simply cared more.