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China Briefing handpicks and explains the most important climate and energy stories from China over the past fortnight. Subscribe for free here.
Key developments
Critical mineral ‘deal’
TRANSITION TURMOIL: US president Donald Trump said China and the US reached a “deal” after talks were held in London, reported the BBC News, adding that “he said China had agreed to supply US companies with magnets and rare earth metals”. Shortly after the announcement, a Chinese manufacturer confirmed that it received “export permits” to countries including the US, according to Bloomberg. China’s earlier move to impose export curbs on critical minerals had “hit” the global auto industry, said Reuters. In answering Carbon Brief’s question of how the recent mineral disputes may affect global energy transition, Tian Jietang, director-general of the research department of industrial economy at the Development Research Center of the State Council said that the minerals are a “very important factor” for “new energy” development, but the “reason” behind the turmoil is “not from China”. China is “always open” to cooperate with the world for “faster green transition”, he added at an Asia House event.
‘FIRM’ CLIMATE ‘ACTIVIST’: Tian emphasised that China has always been a staunch contributor to global “green transition”. A similar line appeared in a comment article in the Communist party-affiliated newspaper People’s Daily, which called China a “firm activist and important contributor to the world’s green development”. In another People’s Daily article, the newspaper explained that the “direct reason” behind China’s “insist[ence] on carbon reduction” is that “climate warming threatens human survival and the continuation of civilisation”. It added that such “green and low-carbon transition” is also good for China’s economy and society. China Daily said the US’s tariffs on “clean energy products”, on the contrary, are “negatively affecting both [the] US and global green energy”.
Renewable pricing shift
MARKET PRICE: China entered a ”new stage of market-based pricing” for renewables on 1 June, after a notification was issued earlier this year, reported local newspaper Beijing Daily. The newspaper said projects that started operating before June would be paid prices pegged to the local coal-fired electricity price, in line with the previous policy, whereas electricity prices from projects operating after June will not be “protected”. (See the Carbon Brief explainer on the new policy.) The Shanghai-based Paper said there had been a rush to complete renewable projects before the June deadline – new installations of solar in April alone soared by 215%. As of April, the total capacity of wind and solar reached 1,530 gigawatts (GW) in China, “surpassing” the capacity of thermal power, reported industry news outlet BJX News. However, some wind and solar projects have been halted as a result of the new policy, said financial publication Yicai. The outlet quoted an unnamed source saying the returns for some projects are “no longer economically feasible”.
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‘NEW ELECTRICITY SYSTEM’: Meanwhile, the plans to construct the “first batch of pilot projects” for a “new electricity system” was announced, reported BJX News. It added that according to a notification from the National Energy Administration (NEA), the pilot projects will focus on seven areas, including building “smart microgrids” and “virtual power plants”, better connecting clean energy “bases” to the rest of the country and developing “next-generation coal power”. Quoting experts, China Energy Net said that the success in building such a new system lies in transferring the current system from a “single” network to an “‘adaptability-early warning’ planning paradigm” over the next 15th “five-year plan” period (2026-30). The new system should be dominated by renewable energy and respond to risks, such as extreme weather, added the outlet. The NEA confirmed that “speeding up” plans for renewable energy over the next five-year plan period is one of its work priorities for the second half of the year, according to BJX News.
More plans issued as industry and oil set to drop
NEW SYSTEMS: China is aiming to build a “national standardised system for responding to climate change”, covering mitigation and adaptation, reported state news agency Xinhua. In an official Q&A, the Ministry of Ecology and Environment (MEE) said that it led the drafting of the new system, issued jointly with 14 other departments. Separately, the Central Committee of the Communist party of China and the State Council said that China’s market-based approach to environmental issues, such as carbon dioxide (CO2) emissions trading, should be “basically complete” by 2027, reported BJX News. This will include stronger links between the national emissions trading system (ETS) and related markets for “CCERs” and “GECs”, the outlet said. (The steel, cement and aluminium industries are being consulted over joining China’s national emissions trading system, ETS, according to a screenshot of a policy document circulating on social media. The document is not public, but its existence has been confirmed to Carbon Brief by multiple sources.)
INDUSTRY EMISSIONS: Meanwhile, the “national standards for product carbon footprints” for nine products, including electrolytic aluminium, chemical fibres and plastic, have been established, said the People’s Daily. It is estimated that the total carbon dioxide (CO2) emissions from the industry sector could drop to 450m tonnes in 2060, down 95% from 2025, according to a joint report by the Tsinghua University, as well as Energy Foundation China and the Chinese Academy of Environmental Planning – a research institute under the MEE, reported China Science Daily.
FALLING OIL DEMAND: The overall demand for oil is set to decline in China, with the “faster adoption” of “new-energy vehicles” (NEVs) offsetting growth in other areas, reported state-run newspaper China Daily. The outlet added that NEVs and liquefied natural gas (LNG) heavy trucks played a “significant role” in reducing demand for “traditional fuels” in 2024. In addition, strong sales of electric trucks – boosted by government incentives – pushed down demand for diesel, which makes up over a quarter of Chinese oil demand, said Bloomberg. Another article by China Daily said that one incentive – the equipment trade-in policy – motivated more than 4m car trade-in applications between January and May 2025. It said more than half of applications in the first four months of the year were for NEVs. The total production and sales of NEV reached just under 6m units in the first five months of this year, a year-on-year increase of around 45%, reported Xinhua.
Extreme weather events
RAIN AND HEATWAVES: Yunnan province in southeast China was hit by “flash floods and mudslides” triggered by heavy rainfall, affecting around 5,000 residents, reported Reuters. Hunan province in the south also received pouring rain, which “seriously damaged” roads and power facilities, said state broadcaster CCTV. Heatwaves, in the meantime, swept northern China with temperatures in Hebei and Xinjiang province topping 40C, reported China National Emergency Broadcasting Center, a state-run media outlet. People’s Daily reported that the central government had allocated 45m yuan ($6.2m) of “natural disaster relief funds” to support flood control and disaster relief in Yunnan, a landslide in Tibet, and drought relief in Gansu and Ningxia.
11,000,000,000
The capacity of newly approved coal power plants in the first quarter of 2025 in watts – some 11 gigawatts (GW). This is 1GW more than the first six months of last year, according to a report from NGO Greenpeace, covered by Reuters. The newswire added that China had approved 289GW of new coal capacity over 2021-25 and that last year saw the first annual decline in approvals since 2021.
Spotlight
More than 100bn yuan poured into coal via ‘capacity payments’ in 2024
To date, there is no clear evidence that China’s coal “capacity payments” are helping coal-fired power plants to transfer into a “supporting role” with reduced output and emissions, according to a Carbon Brief guest post by Mingxin Zhang, coal researcher at Global Energy Monitor (GEM).
In the first year of the scheme, GEM finds that some 70-100% of China’s coal plants received payments totalling more than 100bn yuan ($14.8bn), boosting their revenues by around 5-8%.
In this issue, Carbon Brief highlights the key findings of the guest post. The full article is available on Carbon Brief’s website.
A ‘supporting’ role for coal
China rolled out a system of “capacity payments” in January 2024, with the aim of maintaining energy security while helping coal-fired power plants shift into a “supporting role”, alongside a growing share of variable renewables.
The mechanism essentially provides a monthly “standby” payment to eligible public coal plants, to help cover fixed operating costs during low production periods and to ensure that they are available to switch on during peak demand periods.
The national framework sets payment levels at either 30% or 50% of a benchmark coal plant’s total fixed costs, which was determined to be 330 yuan ($45.8) per kilowatt (kW).
To illustrate the mechanism’s impact, consider a 600 megawatt (MW) coal plant running at China’s 2024 average rates – operating for 4,628 hours a year and selling electricity at 0.452 yuan ($0.063) per kilowatt-hour (kWh).
If it receives a 30% capacity payment, roughly 59.4m yuan ($8.2m) would be added to its bank account, driving up the revenue by 4.7%. If the rate is at the 50% level, the bump rises to 7.9%.
Project year one
After one year of China’s programme, GEM’s analysis finds that, while the policy has contributed to coal power plant revenue, there is still little definitive evidence to show that it is helping coal plants reduce their operation, as intended.
Only 12 provincial governments – representing 38% of the country’s total operating coal capacity – have released lists of qualifying plants.
Based on the national policy’s payment levels and the 12 provincial recipient lists, the capacity payments in these provinces alone was more than 40bn yuan ($5.5bn).
Combining the total operating capacity and payment numbers from the 12 provinces that have published data with GEM’s most recent national capacity figures, the analysis estimates that the total national payout in 2024 was approximately 107bn yuan ($14.8bn).
(This figure is uncertain. Greater transparency would help clarify how the mechanism is functioning and its role in shaping the future of coal in China’s power system.)
Despite restrictions, most coal capacity is eligible
By cross-referencing provincial recipient lists with GEM’s Global Coal Plant Tracker (GCPT), it is possible to estimate the share of each province’s coal capacity receiving payments.
In almost all of the 12 provinces that published recipient lists, 70-100% of coal capacity is eligible for payments.
The programme said that only “compliant, public operating coal units” are eligible for the capacity payments and excluded three categories:
- “Captive” units, which exclusively serve specific industrial or commercial entities and operate independently from the public power grid;
- Units failing to meet energy efficiency, environmental performance, or operational flexibility standards;
- Units not compliant with the broader “national plan”, a criterion that is not further clarified in the guidelines.
In some cases, the scheme as implemented by individual provinces appears inconsistent with the eligibility criteria. For example, the Mancheng Mill power station in Hebei provides heat and power exclusively to a pulp and paper industrial park. This appears inconsistent with the “captive unit” exclusion.
Some newly built coal power plants and decades-old plants were also included. For example, Beihai Bebuwan power station Unit 4 in Guangxi began operating in March 2024 and was added to the recipient list in September 2024. Shenhua Panshan power station Units 1 and 2 in Tianjin began operating in 1994 and were retrofitted in 2023.
Finally, several provincial lists include smaller units, which may have limited ability to contribute to peak demand management. For example, five 57MW units from Shaoxing Binhai power station in Zhejiang were accredited for capacity payments.
Their actual contribution to evening peak load, when generation from solar and wind is low, is unclear from the list or other available provincial assessments.
More questions than answers?
There was only two months between the announcement of coal capacity payments and their implementation, leaving no time for pilot programmes or detailed feedback. This may help explain the ambiguities that have emerged during the provincial execution process.
Our analysis of the first year of the scheme suggests that provincial discretion has played a major role, with national criteria loosely applied in practice.
Moreover, there is no clear evidence to date that the mechanism has led to reduced coal utilisation hours, or significantly increased solar and wind generation.
Watch, read, listen
MINISTER’S COMMENT: Huang Runqiu, head of China’s MEE, penned an article about biodiversity for Qiushi, the Communist party’s leading magazine on ideology.
US NUCLEAR COMPONENT BAN: The Hong Kong-based South China Morning Post published an analysis on China’s nuclear energy against the background of the US’s nuclear power controls.
CARON NEUTRALITY FORUM: A group of prominent Chinese scholars gathered in Shanghai and made speeches about China’s “dual-carbon goals”, according to the official WeChat account of the Research Institute of Carbon Neutrality of the Shanghai Jiao Tong University.
EV CCOMPETITION: BBC News international business correspondent Theo Leggett recorded a reading of his analysis of the expansion of Chinese cheap electric vehicles (EVs), as well as security concerns over them.
New science
Embracing the future, powering growth: An energy system renewed for China
Springer Nature
A book jointly written by oil major Shell and the Development Research Center of the State Council of China explored energy transition challenges and pathways in China. At the book’s launch event, attended by Carbon Brief, representatives from both organisations introduced the main arguments in the book, including challenges China faces in reaching its “dual-carbon” goals, its high reliance on coal and regional disparities between renewable energy resources and demands, as well as its commitment to reach carbon neutrality in just 30 years – a shorter timeline than most developed countries. The book outlines three “approaches” and five “supports”, including electrification, better carbon and electricity pricing, legal support and investing in energy storage, as well as other resources, such as hydrogen and nuclear.
A machine learning approach to carbon emissions prediction of the top eleven emitters by 2030 and their prospects for meeting Paris Agreement targets
Scientific Reports
China, India, Japan, Canada, South Korea and Indonesia are projected to miss their 2030 emissions reduction targets by “significant margins”, according to new research. The authors used a machine learning approach to analyse data from 1990-2023 from the 11 highest emitting countries. They found that Russia is on track to exceed its reduction targets, while Germany and the US will “fall slightly short”. Iran and Saudi Arabia are expected to increase emissions rather than reduce them, according to the study. The authors say that “emerging economies require international collaboration and investment to support low-carbon transitions”.
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China Briefing is compiled by Wanyuan Song and Anika Patel. It is edited by Wanyuan Song and Dr Simon Evans. Please send tips and feedback to china@carbonbrief.org
The post China Briefing 12 June 2025: Critical mineral exports; Electricity price; Coal ‘capacity payment’ appeared first on Carbon Brief.
China Briefing 12 June 2025: Critical mineral exports; Electricity price; Coal ‘capacity payment’
Greenhouse Gases
After Congress cuts clean energy measures, climate advocates are undeterred in D.C.
FOR IMMEDIATE RELEASE
After Congress cuts clean energy measures, climate advocates are undeterred in D.C.
July 16, 2025 – Next week, Citizens’ Climate Lobby will hold its 16th annual Summer Conference and Lobby Day in Washington, D.C.
CCL will welcome more than 800 registrants from around the country, who will attend conference activities beginning Sunday evening, July 20, through Monday, July 21.
Keynote speaker Amanda Ripley — author of High Conflict and co-founder of the nonprofit Good Conflict — will offer a timely and essential message as we navigate today’s fractured political landscape. See the full conference program here.
Then on Tuesday, July 22, conference attendees will head to Capitol Hill for hundreds of climate-focused meetings with members of Congress. Every meeting will focus on asking lawmakers — Republicans and Democrats like — to support America’s clean energy transition.
Despite the Republicans’ budget reconciliation bill passing into law with major cuts to clean energy measures, the process did reveal growing support among Republican lawmakers for those very measures.
“We had a lot of different letters coming out from Republicans on clean energy provisions, saying how important they are to their district,” Jennifer Tyler, CCL Vice President of Government Affairs, reminded CCL volunteers during the organization’s July meeting.
“Even though their vote and the bill wasn’t what we were looking for, it’s clear that we are generating support in Congress — it’s there. They’re willing to step out publicly and make those proclamations. We’re in this for the long haul, and we’re going in the right direction.”
Our grassroots volunteers will build on this support, emphasizing to Congress that clean energy can strengthen our domestic energy independence, enhance grid reliability, and reduce emissions—all while lowering costs, creating jobs, and spurring private-sector investment.
Public opinion is on our side. Sixty-three percent of Americans polled in December 2024 by the Yale Program on Climate Change Communication stated that developing clean energy sources should be a high or very high priority for the President and Congress.
In certain offices, lobby meetings will also include building support for healthy forest policy, such as the bipartisan Fix Our Forests Act, and discussing carbon border adjustment mechanism policy.
Follow along with this year’s event on CCL’s social media profiles on Instagram, Bluesky, X, or Facebook.
CONTACT: Flannery Winchester, CCL Vice President of Communications, 615-337-3642, flannery@citizensclimate.org
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Citizens’ Climate Lobby is a nonprofit, nonpartisan, grassroots advocacy organization focused on national policies to address climate change. Learn more at citizensclimatelobby.org.
The post After Congress cuts clean energy measures, climate advocates are undeterred in D.C. appeared first on Citizens' Climate Lobby.
After Congress cuts clean energy measures, climate advocates are undeterred in D.C.
Greenhouse Gases
Ricky Bradley steps in as interim Executive Director for Citizens’ Climate
FOR IMMEDIATE RELEASE
Ricky Bradley steps in as interim Executive Director for Citizens’ Climate
July 16, 2025 – Today, Citizens’ Climate Vice President of Field Operations Ricky Bradley assumes the role of interim Executive Director, after several weeks of a collaborative transition period with outgoing Executive Director Rachel Kerestes and Citizens’ Climate’s governing boards.
“Rachel’s leadership helped lay a strong foundation for the future, and I’m deeply grateful for her contributions,” Bradley said. “I’m committed to building on the groundwork she’s laid and on Citizens’ Climate’s proud history of grassroots advocacy.”

Ricky Bradley
Bradley brings nearly a decade of experience working as part of Citizens’ Climate’s staff, most recently as Vice President of Field Operations. In addition to his staff roles, he has also served as a volunteer Group Leader and volunteer Regional Coordinator, all of which ground him in Citizens’ Climate’s grassroots model.
“I’m excited about where Ricky’s leadership can take us from here,” said Citizens’ Climate Lobby board chair Bill Blancato said in a recent meeting with volunteers. “He’s the perfect person to take over from Rachel and carry our mission forward.”
Prior to joining Citizens’ Climate, Bradley led strategic planning and implementation efforts at HSBC, helping a large team adopt new approaches and deliver on big organizational goals.
“The political landscape is shifting, and Citizens’ Climate is stepping up — not by pressing harder in the same places, but by adapting our approach, concentrating our influence where it counts, protecting the progress we’ve made, and pursuing politically viable, durable climate solutions,” Bradley said.
Bradley joins the rest of Citizens’ Climate staff and more than 800 grassroots volunteers in Washington, D.C., next week for the organization’s annual Summer Conference and Lobby Day.
CONTACT: Flannery Winchester, CCL Vice President of Communications, 615-337-3642, flannery@citizensclimate.org
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Citizens’ Climate Lobby is a nonprofit, nonpartisan, grassroots advocacy organization focused on national policies to address climate change. Learn more at citizensclimatelobby.org.
The post Ricky Bradley steps in as interim Executive Director for Citizens’ Climate appeared first on Citizens' Climate Lobby.
Ricky Bradley steps in as interim Executive Director for Citizens’ Climate
Greenhouse Gases
嘉宾来稿:探究火山喷发如何影响气候预测
火山喷发对科学家及其气候模型构成了根本性挑战。
众所周知,剧烈的火山喷发会导致地表气温突然下降,多次喷发则会在几十年乃至几个世纪的时间尺度上影响气候变率。
当火山喷发将二氧化硫注入平流层时,会形成气溶胶,从而阻挡阳光到达地球表面。
与人类对气候变化的影响不同,后者发生缓慢且可以在各种社会经济情景下被纳入气候模型进行考量。火山喷发具有突发性,这给气候预测带来了挑战。
目前科学家尚无法预测火山喷发的发生时间、地点以及二氧化硫的排放量。
那么,在进行未来气候预测时,如何考虑火山喷发对气候的影响呢?
在我们最近发表于《通讯-地球与环境》(Communications Earth & Environment)的研究中,我们表明火山喷发对全球气温预测的不确定性产生了重大影响。
我们的研究结果发现,如果将偶发的火山喷发纳入气候预测,突破《巴黎协定》所设定的1.5C升温上限的时间会略有延迟,但与此同时,未来几十年也将出现更多快速升温和降温的时期。
气候预测中的火山强迫
气候科学家将火山喷发对气候的影响——主要是通过释放出二氧化硫气体进入大气——称为“火山强迫”(volcanic forcing)。
当前的气候模型在进行未来预测时采用一个恒定的火山强迫值,该值是根据1850年至今的历史平均强迫值计算得出的。
国际耦合模式比较计划(CMIP)也是如此,这项全球模型工作为政府间气候变化专门委员会(IPCC)发布的重要评估报告提供基础数据。
然而,这种方法存在显著局限。
首先,历史平均强迫值无法表示火山爆发的偶发性。
大规模火山喷发呈零星分布——有时好多事件集中发生在某几个十年内,有时两个事件之间则可能相隔上百年。
此外,与数千年尺度的记录相比,从1850年至今的参考时期中,发生过的大规模喷发事件 ——指排放超过3太克(Tg)二氧化硫的喷发事件——相对较少。
最后,早期国际耦合模式比较计划气候模型中所使用的火山强迫重建数据并未包含排放量少于3太克二氧化硫的中小规模喷发。
这是因为这些喷发在1980年卫星时代开始之前大多未被探测到。然而,这些体量较小但发生频率更高的喷发事件,在长期火山强迫中贡献了30%至50%。
采取新方法
传统上,气候科学家认为气候预测中主要存在三种不确定性来源:内部变率、模型不确定性和情景不确定性。
其中,“内部”变率是指气候系统内部自然产生的波动,如厄尔尼诺现象;模型不确定性是指不同气候模型之间结果的差异;情景不确定性则涉及未来几十年全球可能的发展路径。
我们的研究结果表明,火山喷发应被明确视为气候预测中第四个重要的不确定性来源。
为了探究在考虑火山强迫不确定性的情况下,气候预测会发生怎样的变化,我们的研究采用了一种概率方法,这一方法建立在Bethke等人于2017年提出的研究基础之上。
为此,我们构建了“随机强迫情景”,其本质是1000种延续至本世纪末的火山活动可能时间线预测。
这些情景基于冰芯中记录的过去1.15万年火山活动历史,以及卫星观测和地质证据。每个情景都呈现了不同的喷发强度、地点、时间和频率的组合。
(在数学中,“随机”系统是指结果包含随机性或不确定性的系统,因此不可预测;这与“确定性”系统相对,后者的结果可以通过初始条件和一套规则或方程完全预测。)
随后,我们利用2015至2100年期间的随机火上强迫和历史平均火山强迫模拟气候预测,研究共享社会经济路径(SSPs)中三种不同排放情景下的升温变化:低排放情景(SSP1-1.9)、与现行气候政策相符的中等排放情景(SSP2-4.5)、非常高排放情景(SSP5-8.5)。
在这一步中,我们使用了一种称为FaIR的简化气候模型,也称“模拟器”。
通过模拟1000种不同的火山未来情况,我们发现在21世纪未来时期火山喷发所引起的气候不确定性,可能超过同期气候系统本身的内部变率。
我们还发现,到2030年代,火山喷发可能占全球气温预测总不确定性的三分之一以上。
下图中能看到这些结果。图中展示了不同来源对总不确定性的影响。火山为橙色、内部变率为深蓝色、气候模型响应为黄色,未来人类排放情景为绿色。

对1.5C临界值的意义
我们的模拟结果表明,在气候预测中纳入可能的火山活动时间线后,短期内突破《巴黎协定》设定的1.5C升温上限的概率略有下降。
根据不同的排放情景,相较于使用恒定火山强迫的预测,模拟发现超过1.5C升温上限的概率下降了4%至10%。
尽管这一结果听起来似乎令人鼓舞,但未来的火山活动并不能在长期缓和由人类引起的全球变暖。
1815年坦博拉火山的喷发事件就是一个强有力的例证。这次喷发使全球气温平均下降了约0.8C,带来了“无夏之年”,导致欧洲、北美和中国大范围的作物歉收和饥荒。
火山喷发带来的降温效应是短暂的,通常只持续几年,其并不会改变由人类排放所导致的长期变暖趋势。
我们的研究发现,即使考虑多种可能的未来火山活动,在除了最低排放路径以外的所有情景中,全球变暖仍将在几十年内超过1.5C。
即便21世纪火山活动频繁,其对全球变暖的抵消作用也仅占很小一部分——这意味着减排对于实现长期气候目标仍然至关重要。
下方图表展示了在三种排放情景下,使用随机火山强迫(实线)与恒定火山强迫(虚线)时超过1.5C的概率(上图),以及两种强迫方式之间的概率差异(下图)。

十年尺度的气温变率
我们的研究提供的另一个重要发现是:一旦将火山强迫的变率纳入考虑,将更有可能出现极端温暖和寒冷的十年期。
在中等排放情景下,我们发现出现负向十年期趋势——即全球表面温度在某个十年内平均下降——的概率增加了10%到18%。
与此同时,出现极端温暖十年期的概率也随之增加,这反映出火山强迫的变率会同时提高变暖和变冷极端事件发生的可能性。
这一结果凸显了火山喷发如何在十年时间尺度上对全球气温趋势带来显著的波动。
迈向更完善的气候预测
了解火山对气候的影响,对于全面评估农业、基础设施和能源系统在未来所面临的风险至关重要。
使用全面的地球系统模型运行数千种火山情景并不切实际,因为这需要极高的计算资源。但与此同时,当前的方法也存在上文提到的显著局限。
不过,在未来的气候模型工作中,仍有折中方案可行。
即将开展的下一阶段气候建模实验——即CMIP7情景模式比较计划——可以采用更具代表性的“平均”火山强迫基线,这一基线纳入了历史记录中常被遗漏的小型喷发事件的影响。这一偏差现已在用于下一代气候模型模拟的历史火山强迫数据集中得到纠正。
此外,建模团队还应额外运行包含高频和低频未来火山活动的情景,以全面捕捉火山不确定性对气候预测的影响范围。
虽然人类导致的温室气体排放仍是气候变化的主导因素,但若能妥善考虑火山活动的不确定性,将有助于我们获得更全面的未来气候图景及其对社会的潜在影响。
The post 嘉宾来稿:探究火山喷发如何影响气候预测 appeared first on Carbon Brief.
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