Tuesday, March 4, 2014

                             Carbon Footprint       


            A carbon footprint has historically been defined by Championne as "the total sets of greenhouse gas emissions caused by an organization, event, product or person.

However, the total carbon footprint cannot be calculated because of the large amount of data required and the fact that carbon dioxide can be produced by natural occurrences. It is for this reason that Wright, Kemp, and Williams, writing in the journal Carbon Management, have suggested a more practicable definition:
 
"A measure of the total amount of carbon dioxide (CO2) and methane (CH4) emissions of a defined population, system or activity, considering all relevant sources, sinks and storage within the spatial and temporal boundary of the population, system or activity of interest. Calculated as carbon dioxide equivalent (CO2e) using the relevant 100-year global warming potential (GWP100).

Greenhouse gases (GHGs) can be emitted through transport, land clearance, and the production and consumption of food, fuels, manufactured goods, materials, wood, roads, buildings, and services. For simplicity of reporting, it is often expressed in terms of the amount of carbon dioxide, or its equivalent of other GHGs, emitted.

Most of the carbon footprint emissions for the average U.S. household come from "indirect" sources, i.e. fuel burned to produce goods far away from the final consumer. These are distinguished from emissions which come from burning fuel directly in one's car or stove, commonly referred to as "direct" sources of the consumer's carbon footprint.



The concept name of the carbon footprint originates from ecological footprint, discussion, which was developed by Rees and Wackernagel in the 1990s which estimates the number of "earths" that would theoretically be required if everyone on the planet consumed resources at the same level as the person calculating their ecological footprint. However, given that ecological footprints are a measure of failure, Anindita Mitra (CREA, Seattle) chose the more easily calculated "carbon footprint" to easily measure use of carbon, as an indicator of unsustainable energy use. In 2007, carbon footprints was used as a measure of carbon emissions to develop the energy plan for City of Lynnwood, Washington. Carbon footprints are much more specific than ecological footprints since they measure direct emissions of gasses that cause climate change into the atmosphere.



The most common way to reduce the carbon footprint of humans is to Reduce, Reuse, Recycle. In manufacturing this can be done by recycling the packing materials, by selling the obsolete inventory of one industry to the industry who is looking to buy unused items at lesser price to become competitive. Nothing should be disposed off into the soil, all the ferrous materials which are prone to degrade or oxidize with time should be sold as early as possible at reduced price.
This can also be done by using reusable items such as thermoses for daily coffee or plastic containers for water and other cold beverages rather than disposable ones. If that option isn't available, it is best to properly recycle the disposable items after use. When one household recycles at least half of their household waste, they can save 1.2 tons of carbon dioxide annually.
Another easy option is to drive less. By walking or biking to the destination rather than driving, not only is a person going to save money on gas, but they will be burning less fuel and releasing fewer emissions into the atmosphere. However, if walking is not an option, one can look into carpooling or mass transportation options in their area.


Wednesday, February 19, 2014

Biodiversity



             
                  When Maám Ramos let us pick about the photos which has a lot of colors and shapes, I don't know what is the basis or how we will choose. She just said, "just pick what was the better one because this is related to our topic''. So I just judge and think what was the better picture for me but I don't have any idea what is all about. Then I just realized that it was about ''BIODIVERSITY''. The picture that has greater color and shapes describes the diversity or differences of each. She added,'' the more shapes and color it is, was better. I'll share some information about biodiversity based from my learnings.

                  BIO means ''life''', while DIVERSITY means ''variety'' or ''differences''. Biodiversity is a variety of life on Earth and the essential interdependence of all living things. There are 3 components of biodiversity:
                           1.) Diversity of genes
                           2.) Diversity of species
                           3.) Variety of ecosystems
                   

                  I realized that God is very clever that everyone is unique, and because of uniqueness we learn how to feel the real world. What if we all have the same physical appearance? How would we know each differences? Of course, how would we enjoy our living if there's only one thing and it's all the same?

''We can no longer see the continued loss of biodiversity as an issue separate from the core concerns of society: to tackle poverty, to improve the health, prosperity and security of present and future generations, and to deal with climate change. Each of those objectives is undermined by current trends in the state of our ecosystems, and each will be greatly strengthened if we finally give biodiversity the priority it deserves.''