Annotated Summary

Lindsey, R. (2020, August 14). Climate change: atmospheric carbon dioxide. Climate.gov. https://www.climate.gov/news-features/understanding-climate/climate-change-atmospheric-carbon-dioxide

In this article, Lindsey (2020) reported that the global average carbon dioxide in 2019 reached 409.8 parts per million (ppm). The concentration reached its peak as compared to figures for the past 800,000 years. The increase in carbon is largely due to the burning of fossil fuels for energy. Fossil fuels consist of carbon that plants drew out from the air millions of years ago, and we humans are bringing the carbon back into the air by burning fossil fuels in a span of several hundred years. Lindsey stated that atmospheric carbon dioxide rose 100 times faster in the past 60 years compared to non-human increases 11,000 years ago. Lindsey mentioned that greenhouse gases stores heat and radiates it slowly as time passes. While carbon dioxide does not take in as much heat per molecule when compared with methane and nitrous oxide, carbon dioxide constitutes more of the atmosphere and linger in the air for a longer duration. Carbon dioxide is the cause for two-thirds of energy disproportion leading to an increase in Earth’s temperature. Lindsey stated that carbon dioxide leads to ocean acidification. The pH level of the ocean decreased from 8.21 to 8.10 since the beginning of the Industrial Revolution. Carbon dioxide in the atmosphere reacts with seawater and creates carbonic acid that decreases the ocean’s pH level. Water acidity affects marine lives’ capability to draw out calcium for their exoskeletons or bones. As oceans get heated up, carbon dioxide is released back into the atmosphere. If the requirement for energy continues to be supplied by non-renewable sources, atmospheric carbon dioxide is predicted to go beyond 900ppm by the end of the 21st century.

Carbon emission is harmful to both the environment and all living creatures living in it. As stated in the proposal to BlueSG, the transport sector in Singapore contribute to14.25% of carbon emission in Singapore. Environmentally friendly vehicles such as hydrogen fuel cell vehicles can help to reduce overall carbon emissions. The only by-products of a hydrogen fuel cell are water and heat. The implementation of hydrogen fuel cell vehicles can potentially reduce atmospheric carbon dioxide, reducing issues such as human and environmental health stated in the proposal.


Commented on summaries by Kei Man, Raymond, and Bryan.

Edited 12/05/2020

Comments

  1. Bryan23 November 2020 at 18:28

    Dear Jing Kai,

    Thank you for your annotated summary, hope you would not mind me giving some comments on your annotated summary.

    Firstly, i feel that your annotated summary could have at least be split to 2 paragraph, making it easier for the readers to read.

    Next, through your summary, we can learn about the frightening numbers of increasing carbon dioxide in the air. The increase in carbon dioxide causes different situations like creating carbonic acid that decreases the sea's pH level, affecting the sea creatures in the sea to not be able to have the calcium grown fully.

    Lastly, i feel that you could build more on how hydrogen fuel cell can curb this issues, allowing the readers to link on the benefits, even though it is not part of the summary, but it could help the readers to relate or know that there is a solution to the problem

    Yours sincerely,
    Bryan

    ReplyDelete
    Replies
    1. JK Toh28 November 2020 at 08:26

      Dear Bryan

      Thank you for reading my annotated summary and commenting on it. I have read through your your comments and will make necessary changes to my summary.

      Best regards
      Jing Kai

      Delete
  2. Chubby_girl26 November 2020 at 22:02

    Dear Jing Kai,

    Thank you for your annotated summary. It is very clear in explaining the effects of carbon dioxide on climate change over the years. However, you should also elaborate on how the information in this article is related to your report. You can also mention how you used this information in the report. Besides that, you should state the main idea of the article at the start of your paragraph, making it clear for the reader to briefly know about the contents before reading your summary.

    Thank you.

    Best regards,
    Kei Man

    ReplyDelete
    Replies
    1. JK Toh28 November 2020 at 08:30

      Dear Kei Man

      Thank you for reading and commenting on my annotated summary. I have read through your comments and will make the necessary changes to my summary.

      Best regards
      Jing Kai

      Delete
  3. HermO30 November 2020 at 21:21

    Dear Jing Kai,

    I appreciate your time in explaining the harmful effects of carbon dioxide to the atmosphere. You provided well thought explanations and linking back to the main topic. It was interesting to learn about how burning fossil fuels affect the pH value of the ocean, contributing to a larger impact to the environment.

    However, correct me if I'm wrong, but I think the reference article should be placed before your annotated summary.

    Overall, this is a well written piece.

    Thank you.

    Sincerely yours
    Herman

    ReplyDelete
    Replies
    1. JK Toh4 December 2020 at 23:01

      Dear Herman

      Thank you for reading and commenting on my blog post. I have read your comment and believe you are right. I will make the necessary changes to my post. Once again, thank you.

      Best regards
      Jing Kai

      Delete
  4. Brad Blackstone6 December 2020 at 03:22

    Thanks, Jing Kai, for the revision.

    ReplyDelete

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