Context
A Wood Mackenzie report estimates that natural carbon sinks absorbed around 40% of anthropogenic CO₂ emissions in 2025. However, degradation of forests and pressure on ocean sinks could weaken their ability to offset residual emissions, threatening global net-zero strategies.
Explanation
- A carbon sink absorbs more carbon than it releases; major natural sinks include oceans, forests, soils and wetlands.
- Through photosynthesis, terrestrial vegetation removes atmospheric CO₂ and stores carbon in biomass and soils.
- Oceans absorb CO₂ through physical and biological processes, making them a major component of the global carbon cycle.
- Net zero means balancing anthropogenic greenhouse-gas emissions with removals; it does not necessarily mean eliminating all emissions.
- Hard-to-abate residual emissions therefore require natural or technological carbon dioxide removal (CDR).
- Deforestation, wildfires, warming oceans and ecosystem degradation can weaken sinks and may even convert some ecosystems into carbon sources.
- Tipping points, including permafrost thaw and Amazon dieback, can create positive climate feedbacks.
- Protecting and restoring ecosystems constitutes nature-based solutions and complements engineered removals such as Direct Air Capture (DAC) and Bioenergy with Carbon Capture and Storage (BECCS).
La Excellence IAS Academy, the best IAS coaching in Hyderabad, known for delivering quality content and conceptual clarity for UPSC 2026 preparation.
FOLLOW US ON:
◉ YouTube : https://www.youtube.com/@CivilsPrepTeam
◉ Facebook: https://www.facebook.com/LaExcellenceIAS
◉ Instagram: https://www.instagram.com/laexcellenceiasacademy/
GET IN TOUCH:
Contact us at info@laex.in, https://laex.in/contact-us/
or Call us @ +91 9052 29 2929, +91 9052 99 2929, +91 9154 24 2140
OUR BRANCHES:
Head Office: H No: 1-10-225A, Beside AEVA Fertility Center, Ashok Nagar Extension, VV Giri Nagar, Ashok Nagar, Hyderabad, 500020
Madhapur: Flat no: 301, survey no 58-60, Guttala begumpet Madhapur metro pillar: 1524, Rangareddy Hyderabad, Telangana 500081
Bangalore: Plot No: 99, 2nd floor, 80 Feet Road, Beside Poorvika Mobiles, Chandra Layout, Attiguppe, Near Vijaya Nagara, Bengaluru, 560040