Kuttippurath J, Peter R, Singh A, Raj S. The increasing atmospheric CO2 over India: Comparison to global trends.
iScience 2022;
25:104863. [PMID:
35992089 PMCID:
PMC9389241 DOI:
10.1016/j.isci.2022.104863]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 05/28/2022] [Accepted: 07/27/2022] [Indexed: 12/05/2022] Open
Abstract
Atmospheric CO2 is the key Greenhouse Gas in terms of its global warming potential and anthropogenic sources. Therefore, it is important to analyze the changes in the concentration of atmospheric CO2 to monitor regional and global climate change. Here, we use ground-based and satellite measurements for the 2002-2020 period to assess CO2 over India. The average CO2 trend over India is about 2.1 ppm/yr, and the highest trends are in agreement with the increase in total energy consumption during the period, and the highest trends are found in the areas of mines and refineries in the west and east India. The estimated CO2 trends for India are comparable to that of global tropical and mid-latitude regions. The increasing CO2 implies serious anthropogenic global warming and thus, calls for mitigation measures and continuous monitoring for timely policy interventions.
All satellite CO2 measurements show a bias between −0.5 and 3.0 ppm
Coastal India shows high concentrations and the highest trend is 2.4 ppm/yr
The global average CO2 trends are similar to that of India, about 1.8-2.1 ppm/yr
The Increasing CO2 is a concern for regional warming and global climate change
Collapse