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Carbon Dioxide Good And The Bad Script

1587 words - 7 pages

Hello, today I will present my presentation on the good and bad of carbon dioxide. This presentation will focus on the characteristics of carbon, global or local issues related to carbon dioxide, what science is doing to address these issues and the benefits and limitations of these scientific methods.

The name of my element is carbon. Its symbol is the letter “C” and its atomic number is 6. Its atomic mass is 12.0107. Carbon’s abundance on the earth’s crust is 200 parts per million by weight and 344 parts per million by moles. You can buy 100g of carbon for $2.40.

Global warming is the main global issue with carbon. It’s the process of carbon dioxide getting trapped in the atmosphere. The carbon dioxide is thickening the atmosphere and trapping heat causing climate change. Global warming can cause problems for earth and if we don’t fix this, scientists predict that the effects could be disastrous.

There are ways that science addresses this problem:
Fuel switching: Use of fuels with low amounts of carbon and use of renewable energy resources.
Carbon Capture and Sequestration (CCS): A set of technologies that can greatly reduce CO2 emissions from new and existing coal, industrial processes (gas plants).
Geoengineering: The manipulation of the earth’s climate by scientific means.

The first fuel switching technology is solar-thermal energy. It is the use of the sun’s rays being converted into energy through a solar panel. The transfer of sunlight to electricity is possible through the use of photovoltaic technologies (solar panels). The heat from the sun heats a liquid in the panel. The steam that is created is harnessed and used to power a generator, which in turn creates electricity.

The second fuel switching technology is biomass. It is when organic waste such as trees and plants are used to create low carbon fuels such as ethanol, methanol and burnable gas. These materials are burnt in order to obtain energy. The use of these forms of energy is said to be able to replace 98% of our fossil fuels. The cost of the use of these fuel switching energies is said to cost $170-$200 billion per year for 30 years.

Carbon Capture and Sequestration is the process of reducing emissions of carbon dioxide by injecting the compound back in the ground. The process takes 3 steps:

Store the CO2 from power plants.
Transfer the CO2 in pipelines to the injection points.
Underground injection and geologic sequestration (storage of the CO2) under porous rock formations. Layers that are above are impermeable non-porous layers of rock which ensure the trapping of the CO2.

CCS is s method that can be used to lower carbon dioxide emissions while enabling low-carbon electricity generation from power plants. CCS technologies are said to be able to reduce 80-90% of emissions form factories or plants that burn fossil fuels.

One example of Geoengineering is releasing sulfate particles in the air to mimic the cooling effects of a massive volcanic eruption....

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