Atmospheric variation and future climate change: based on Paleoclimate studies
- 1GeoSystems Infrastructure, Mumbai, India.
Int. Res. J. Earth Sci., Volume 7, Issue (3), Pages 23-28, September,25 (2019)
Global Warming and climate change is major problem for everyone. We are taking various precautions to avoid the global climate change. After the industrial revolution in 18th century, Carbon dioxide (CO2) concentration has been increases rapidly and predicted the impact of global warming. During the Paleo-climatic studies it was observed that climate change happened several times in geological past. Atmospheric concentration varies due to various natural reasons. The CO2 concentration was much higher and oxygen was very low during early atmospheric condition. Later on due to various climatic changes, concentration of CO2 in the atmosphere varies from 7000 part per million (PPM) to 350PPM, Oxygen (O2) varies between 1% to 35% in atmosphere, sea level 450m high to (-)50m low from present sea level and Earth average temperature varies between 29°C to 11°C. Sun brightness was also varying 95% to 100% compared to present. In this paper, trying to discuss Paleo-climatic variation throughout the Geological time, it's affecting factors and observed that average atmospheric concentration of CO2, O2, Earth's average temperature and sea level was much higher than present level. Based on observed data, prepared the impact of CO2 and O2 on flora, fauna and natural disaster. Also prepared line bar chart and predicted that atmospheric concentration of CO2, O2, Earth's average temperature and sea level would be increased naturally in future and affect the ecosystem by various way.
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