antarctica stations worksheet
what have ice cores shown that have to do with carbon dioxide?
Check this site.
http://www-das.uwyo.edu/~geerts/cwx/notes/chap01/icecore.html
To find information about what ice cores have shown regarding carbon dioxide in Antarctica, you can follow these steps:
1. Open your preferred search engine (e.g., Google).
2. Type in relevant keywords, such as "Antarctic ice cores carbon dioxide."
3. Look for reputable sources, such as scientific journals, research institutions, or government agencies.
Ice cores are cylindrical samples of ice drilled from glaciers or ice sheets. These ice cores provide valuable historical records of the Earth's climate and atmospheric conditions over thousands to hundreds of thousands of years.
Regarding carbon dioxide, ice cores have shown the following:
1. Carbon Dioxide Levels: Ice cores reveal past atmospheric carbon dioxide (CO2) concentrations through air bubbles trapped within the ice. This provides scientists with information about CO2 levels stretching back hundreds of thousands of years. The data shows that CO2 concentrations have fluctuated naturally over time but have significantly increased since the Industrial Revolution.
2. Natural Variability: Ice core data also demonstrates natural variations in CO2 levels due to changes in climate. During ice ages, CO2 levels were lower, while warmer periods saw higher concentrations of CO2 in the atmosphere.
3. Human Influence: Comparing pre-industrial CO2 levels with current levels, ice cores highlight the significant impact of human activities on atmospheric carbon dioxide. The increase in CO2 concentration observed in ice cores aligns with the burning of fossil fuels and deforestation, which release substantial amounts of CO2 into the atmosphere.
By examining ice cores, scientists can gain insights into the past dynamics of carbon dioxide levels, establish baseline data, and better understand the consequences of human-driven climate change. Remember to consult reliable sources for more detailed and comprehensive information on this topic.