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Climate dynamics must be considered to achieve carbon neutrality_501 rutile dr
April 11, 2022

Climate dynamics must be considered to achieve carbon neutrality

by Chinese Academy of Sciences

climate
Credit: CC0 Public Domain

The target of carbon neutrality is an integrated and extremely complex issue that is widely associated with climate, ecology, energy, environment, and society. It results from interactions of multiple systems, such as land, atmosphere, ocean, and cryosphere. Among these systems, climate is one of the most important.

Climate is affected by carbon emission yielded by human and nature, and in return, it also affects the carbon emission of human activities and nature. At present, the climate impacts of carbon neutrality policy are still unclear, but to achieve carbon neutrality with relatively small socioeconomic costs, it's important to take the climate impacts into consideration while designing a reasonable carbon emission path to realize the optimal layout of energy, industry, the ecological environment, and other fields.

To address this issue, the journal Fundamental Researchinvited Prof. Huang Gang's team from the Institute of Atmospheric Physics of the Chinese Academy of Sciences, together with scholars at Hohai University, to share their views on climate research and carbon neutrality. The article emphasized that the understanding of climate dynamics against the background of carbon neutrality is of great urgence.

According to the article, during rising stages of CO2concentration, CO2radiative forcing is the main driving force of the climate system. Due to the small heat capacity, land warms rapidly with the increasing of CO2radiative forcing; the ocean's response is slow owing to its large heat capacity.

The thermal difference between land and ocean increases, which enhances monsoon circulation. After carbon neutrality is achieved, CO2radiative forcing stabilizes or decreases, while the ocean still slowly absorbs heat and warming. The land-ocean thermal contrast diminishes, weakening the monsoon circulation; if the CO2concentration decreases dramatically, the deep ocean will release heat to decelerate the cooling of earth surface.

Prof. Huang concluded, "Carbon neutrality is not only a technical issue, but also a scientific issue. More attention should be paid to the feedback of climate system and the impact of non-carbon dioxide on temperature."


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More information:Gang Huang et al, Critical climate issues toward carbon neutrality targets, Fundamental Research(2022). DOI: 10.1016/j.fmre.2022.02.011 Provided by Chinese Academy of Sciences Citation: Climate dynamics must be considered to achieve carbon neutrality (2022, April 11) retrieved 11 April 2022 from https://phys.org/news/2022-04-climate-dynamics-carbon-neutrality.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. 10 shares

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