Published:
Last updated:
May 24, 2024

Carbon Sequestration

What is Carbon Sequestration?

Carbon sequestration refers to the process of capturing and storing atmospheric carbon dioxide (CO2) in a different form. This process is essential in mitigating global greenhouse gas levels and thus plays a critical role in combating climate change. Carbon sequestration can occur both naturally and through artificial means.

Types of Carbon Sequestration:

  • Natural Carbon Sequestration: This process happens through biological activities, such as photosynthesis in forests, where trees and plants absorb CO2 and store it as biomass. Oceans also play a significant role in natural sequestration, absorbing CO2 from the atmosphere.
  • Artificial or Technological Carbon Sequestration: This involves human-engineered solutions to capture and store carbon. Techniques include carbon capture and storage (CCS), where CO2 emissions from industrial processes are captured and stored underground, and direct air capture (DAC), a technology that extracts CO2 directly from the atmosphere.

Importance of Carbon Sequestration:

  • Carbon sequestration acts as a fundamental mechanism in efforts to mitigate the effects of climate change by reducing the amount of CO2 in the atmosphere and storing it for a number of years.
  • Natural methods of carbon sequestration support biodiversity and provide valuable ecosystem services like clean air and water.
  • In artificial sequestration, technological advancements are expanding the potential for significant carbon capture and long-term storage, offering new solutions to help curb climate challenges in the long run.
Table showing the difference in sequestration time for different carbon credit projects
This table shows the difference in sequestration times for various types of carbon credit projects

Challenges in Carbon Sequestration:

  • Artificial sequestration methods, such as Enhanced Rock Weathering and Direct Air Capture, face challenges regarding high costs, energy requirements, and scalability.
  • There are concerns around the sustainability and environmental impact of certain sequestration methods, particularly those involving large-scale land use or ecosystem alterations.

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