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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
China to play major role in global energy shift
ELECTRIFICATION: As the world moves into the “age of electricity”, China’s per-capita demand for electricity will grow to overtake that of all advanced economies combined by 2030 under current policy settings, according to the International Energy Agency (IEA)’s World Energy Outlook (WEO) 2024. The report said this is due to the country’s rising electrification, pushed forward by adoption of electric vehicles (EVs) and other low-carbon technologies, as well as economic growth.
LOW-CARBON POWER: China accounted for 60% of worldwide renewable installations in 2023 and its solar power generation alone will, by 2035, exceed the US’ current total electricity demand, WEO said. A separate IEA report released last week found that China will add 60% of new renewables installations globally between 2024 and 2030. This rapid expansion, according to WEO, will help China lead a global decline in carbon emissions after 2030, with China’s emissions falling to 8% below 2023 levels by 2030 and 24% below by 2035, based on current policy settings. (These figures rise to 17% and 45%, respectively, if China meets its announced pledges.) However, to align with the IEA’s scenario for net-zero emissions by 2050, China’s clean power would need to expand 1.5-times faster than current rates and investment – particularly in grids and energy storage – would need to double.
OIL SLOWS, COAL RISING: China, the world’s largest importer of oil, is currently spurring a “major slowdown” in oil demand growth, largely due to its rapid adoption of EVs, said the report. However, the IEA also said that China will overtake the US as the world’s largest oil consuming country by 2030 and remain the largest oil importer until 2050. Similarly, China is also the largest coal user. It consumed around 55% of the coal used to generate electricity globally and added 73% of the world’s new coal-fired power capacity in 2023, WEO said. (Bloomberg reported that China is also still developing new coal-fired power overseas.) Nevertheless, WEO added that China’s coal consumption for power is likely to peak “in the next few years”.
High-level environmental meeting held
ANNUAL MEETING: The China Council for International Cooperation on Environment and Development (CCICED), a high-level environmental advisory body to the Chinese government, held its annual general meeting on 10-12 October, Earth Negotiations Bulletin reported. About 400 people, including global experts, such as WWF director general Kirsten Schuijt, and high-profile Chinese officials attended the meeting, said China Environment News. Following discussions supervised by the Ministry of Ecology and Environment, CCICED revised a series of draft recommendations, which included: combining “ambitious goals with pragmatic actions” in China’s “nationally determined contribution” under the Paris Agreement and establishing an absolute emissions reduction goal for 2035; setting a target of 2,400 gigawatts (GW) of solar and wind capacity by 2030 and 6,000GW by 2040; and accelerating the expansion of the national carbon market and shifting to auctions for carbon allowances, which are currently given for free.
HEAVY HITTERS: Several influential political figures spoke at the meeting, including executive vice-premier Ding Xuexiang, who reiterated China’s willingness to “work with all parties” on building “a clean and beautiful world” and said it will follow the principle of “common but differentiated responsibilities” in “global environmental challenges”, according to the Communist party-affiliated newspaper People’s Daily. Environment minister Huang Runqiu told delegates that, to advance climate goals, China will focus on six key areas: better “prevention” of emissions; more “precise” emissions control; building “norms” and standards in climate policy; “market guidance”; scientific and technological “empowerment”; and “openness and win-win cooperation”, state news agency Xinhua said. Chinese climate envoy Liu Zhenmin said that “many of the concerns of developing countries at COP28 have not been adequately addressed”, adding that “developed countries…[need to take] the lead in reducing emissions”, according to news outlet China News. Liu’s predecessor, Xie Zhenhua, said in a speech that, “compared with mitigation, in developing countries, adaptation…needs to be solved more than anything else”, said the Paper, a Shanghai-based newspaper.
Diversifying critical mineral supply chains
GROWING FRUSTRATION: The Democratic Republic of Congo (DRC) confirmed that it is “courting new investors” in order to “diversify ownership” in its mining industry, currently dominated by China, Bloomberg reported. It quotes mines minister Kizito Pakabomba saying the country “is looking to make strategic choices about who runs Congo’s mines”. The outlet added that the DRC has “grown increasingly frustrated by its lack of influence over its mining industry, particularly in cobalt”, a mineral central to the production of some types of EV batteries. The Wall Street Journal said the US is encouraging companies to purchase cobalt producer Chemaf in DRC, after blocking its sale to the Chinese state-backed Norin Mining.
MINERALS ALLIANCE: Meanwhile, the US and India have agreed to “cooperate on strengthening supply chains in India and US for lithium, cobalt and other critical minerals”, the Indian Express reported, adding that the agreement “still fall[s] short of a full critical minerals trade deal” allowing India to access US tax credits for EVs. The newspaper also noted that India’s commerce minister Piyush Goyal aimed to “include other countries in the partnership, especially those who are already mineral rich like countries in Africa and South America”. In response to the agreement, an editorial in the state-run newspaper China Daily said the US, “understandably, does not want to put all its eggs in one basket in the face of rising tensions with China” and described a similar minerals deal with Vietnam as “lip service”, adding that “the US helps none but itself”.
HARSH RHETORIC: Meanwhile, the US Department of State’s under secretary for economic growth, energy and the environment Jose Fernandez criticised China for producing too much lithium for global consumption and alleged it was triggering a “predatory” price drop in an “intentional response” to the US’ Inflation Reduction Act, in comments covered by Reuters.
Spotlight
China’s birth policy ‘could raise emissions 20% by 2060’
A study published in Nature Climate Change finds that China’s current population policies – allowing families to have three children – could increase its future carbon emissions.
However, lead author Prof Zhifu Mi, who researches climate change economics at University College London’s (UCL) Bartlett School of Sustainable Construction, tells Carbon Brief that this finding is not to imply that China should reverse its demographic policies.
In an interview, Mi says that, in response to the findings, China could consider a “synergistic approach” to both “fertility policies” and “climate action strategies”.
Carbon Brief: What impact does China’s current population size and demographic makeup have on its carbon emissions?
Zhifu Mi: Population size and demographic composition significantly influence a country’s carbon emissions. Population is one of the primary drivers of greenhouse gas emissions. China has long been the most populous nation, contributing to its status as the largest carbon emitter all over the world. [In 2023, India overtook China as the world’s most populous nation.]
Age structure also plays a role in emissions. The per-capita carbon footprint of younger people (under 30) in China is approximately 1.8 times that of older people (60 and above). This pattern contrasts with developed countries, where older individuals often have higher carbon footprints.
CB: To avoid demographic pressures, China is encouraging families to have three children and its workforce to delay retirement. You found that relaxing limits on family size would make it harder to meet China’s carbon neutrality goal. Could you explain these findings?
ZM: Both relaxing fertility policies and delaying retirement would increase carbon emissions via boosting the labour force. The impact of relaxing fertility policies [and allowing families to have more children] is notably greater than delaying retirement. Shifting from a two-child to a three-child policy would result in a roughly 20% increase in China’s total carbon emissions by 2060.
CB: How are the emissions profiles of China’s young people different to its elderly?
ZM: Younger individuals in China have higher per-capita carbon footprints due to age-related income differences. Their higher per-capita carbon footprints are related to clothing, goods and transport, while older Chinese have higher per-capita carbon footprints related to healthcare.
CB: Some previous research, suggesting that having fewer children is one of the best ways for individuals to cut their carbon footprints, has been criticised for ignoring the impact of climate action, which could reduce the per-capita emissions of the next generation. What do you think about the wider debate on population growth and climate change?
ZM: I disagree with the idea that having fewer children is one of the best ways to cut carbon footprints. Beyond climate change mitigation, we have many other Sustainable Development Goals to consider. While reducing population growth can lower carbon footprints to some extent, population also drives socio-economic development.
Our research indicates that relaxing fertility policies would increase China’s household carbon footprint. We present this objective phenomenon with the hope that this impact of fertility policy will be integrated into climate action strategies.
CB: The paper states that your results should not be read to imply that China must reverse its three-child and retirement-delay policies, but that the policies should be synergised with emissions reductions targets. In your view, what steps could the Chinese government take to do so?
ZM: Yes, our result is not to imply that such policies should be avoided to reduce environmental pressure. We recommend a synergistic approach, considering both population policies and climate goals.
First, climate policies should be tailored to the specific demographic structures of different regions in China – promoting greener consumption and sustainable lifestyles among younger people is crucial. Second, addressing income and consumption disparities across age groups can help mitigate the carbon impacts of fertility and retirement policies. Third, when setting climate targets for each province, population size and demographic composition should be key considerations.
CB: Your paper talks about the need to explore what would happen if China misses its 2060 target, which, as China’s NDC notes, is a challenging goal to meet. What do you see as the key hurdles in this effort?
ZM: Achieving carbon neutrality is a significant challenge for China, particularly because the country has only 30 years to reduce its net carbon emissions to zero after peaking. In contrast, developed countries have had much longer timelines. For instance, the EU…[has allowed] for about 70 years to reduce emissions [from its peak to net-zero]. The US, with a peak in 2005, has 45 years to reach net-zero. China’s more compressed timeline, coupled with the higher volume of emissions to be reduced, makes the challenge more daunting.
Furthermore, China’s energy mix, which is dominated by coal and lacks sufficient oil and gas resources, poses another significant hurdle…Finally, China’s regional economic development is uneven. Eastern regions have witnessed rapid economic growth and industrialisation, while central and western regions lag behind. This imbalance…further complicates China’s path to carbon neutrality.
Responses have been edited for length and clarity.
Watch, read, listen
SUNNY DISPOSITIONS: State broadcaster CCTV’s flagship interview programme Duihua (Dialogue, 对话) aired a discussion of the state of the solar industry with major Chinese solar manufacturers, including Tongwei, LONGi and JingkoSolar.
FIVE-YEAR PLAN: The California-China Climate Institute, a research institute housed at UC Berkeley, issued recommendations for ways Chinese policymakers can take climate goals into account as they prepare for the 15th “five-year plan” (2026-2030).
NDC WATCH: China must avoid setting “conservative near-term climate goals”, an opinion article in Foreign Policy by Lauri Myllyvirta, senior fellow at the Asia Society Policy Institute, and Byford Tsang, senior fellow at the European Council on Foreign Relations, argued.
GREEN FINANCE: Yuan Yuan, a climate and energy campaigner at Greenpeace East Asia, wrote in the Shuang Tan newsletter how the asset management industry can improve climate-related risk management and disclosure standards.
51%
The percentage of Chinese citizens who believe that the US and China have “common objectives” on environment and climate change issues, according to a public opinion poll carried out by Tsinghua University on China’s outlook on international security. Respondents also ranked climate change as the 8th most concerning risk from a list of 18 global security challenges.
New science
Can combined wind and solar power meet the increased electricity load on heatwave days in China after the carbon emission peak? A case study in southern Hebei
Journal of Cleaner Production
A new study revealed that wind and solar power generation could meet the increase in electricity consumption in China’s Hebei province on heatwave days from 2039, in part because heatwaves would raise wind and solar power generation as well as power demand. Using data from the south of Hebei province, which boasts the highest combined wind and solar capacity in China, researchers developed load and wind power models and calibrated “a boosting ensemble learning model to simulate solar generation”. Results showed Hebei could “harness” wind and solar energy to address demand but energy storage capacity would be needed to ensure full coverage.
Comparative analysis of embodied carbon in modular and conventional construction methods in Hong Kong
Scientific Reports
Using modular integrated construction, where parts of new buildings are prefabricated elsewhere and brought to be installed on-site, rather than conventional construction methods, reduced embodied carbon in a Covid-19 isolation facility in Hong Kong by 21%, according to a new study. The study used an embodied carbon assessment of the isolation facility. It found that the reduction in embodied carbon was primarily due to “shortened construction timelines, decreased waste generation and optimised material usage”.
Energy transition in China: Is there a role for climate policy uncertainty?
Journal of Environmental Management
New research found that climate policy uncertainty in China “significantly hinders the progress” of China’s energy transition, particularly by “reducing the level of green finance development and hindering the optimisation of [the] energy structure”. The study used data from 277 Chinese cities to assess this dynamic, discovering that in regions with “weak environmental regulations, high fiscal decentralisation and low administrative levels”, uncertainty has a higher impact on energy transitions. It also stated that climate policy uncertainty further limited the “high-quality development” of China’s economy and levels of “green innovation”.
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 17 October 2024: China’s electrification to disrupt oil; High-level environment meeting; Aligning China’s population and climate policies appeared first on Carbon Brief.
Drought and heatwaves occurring together – known as “compound” events – have “surged” across the world since the early 2000s, a new study shows.
Compound drought and heat events (CDHEs) can have devastating effects, creating the ideal conditions for intense wildfires, such as Australia’s “Black Summer” of 2019-20 where bushfires burned 24m hectares and killed 33 people.
The research, published in Science Advances, finds that the increase in CDHEs is predominantly being driven by events that start with a heatwave.
The global area affected by such “heatwave-led” compound events has more than doubled between 1980-2001 and 2002-23, the study says.
The rapid increase in these events over the last 23 years cannot be explained solely by global warming, the authors note.
Since the late 1990s, feedbacks between the land and the atmosphere have become stronger, making heatwaves more likely to trigger drought conditions, they explain.
One of the study authors tells Carbon Brief that societies must pay greater attention to compound events, which can “cause severe impacts on ecosystems, agriculture and society”.
Compound events
CDHEs are extreme weather events where drought and heatwave conditions occur simultaneously – or shortly after each other – in the same region.
These events are often triggered by large-scale weather patterns, such as “blocking” highs, which can produce “prolonged” hot and dry conditions, according to the study.
Prof Sang-Wook Yeh is one of the study authors and a professor at the Ewha Womans University in South Korea. He tells Carbon Brief:
“When heatwaves and droughts occur together, the two hazards reinforce each other through land-atmosphere interactions. This amplifies surface heating and soil moisture deficits, making compound events more intense and damaging than single hazards.”
CDHEs can begin with either a heatwave or a drought.
The sequence of these extremes is important, the study says, as they have different drivers and impacts.
For example, in a CDHE where the heatwave was the precursor, increased direct sunshine causes more moisture loss from soils and plants, leading to a drought.
Conversely, in an event where the drought was the precursor, the lack of soil moisture means that less of the sun’s energy goes into evaporation and more goes into warming the Earth’s surface. This produces favourable conditions for heatwaves.
The study shows that the majority of CDHEs globally start out as a drought.
In recent years, there has been increasing focus on these events due to the devastating impact they have on agriculture, ecosystems and public health.
In Russia in the summer of 2010, a compound drought-heatwave event – and the associated wildfires – caused the death of nearly 55,000 people, the study notes.
The record-breaking Pacific north-west “heat dome” in 2021 triggered extreme drought conditions that caused “significant declines” in wheat yields, as well as in barley, canola and fruit production in British Columbia and Alberta, Canada, says the study.
Increasing events
To assess how CDHEs are changing, the researchers use daily reanalysis data to identify droughts and heatwaves events. (Reanalysis data combines past observations with climate models to create a historical climate record.) Then, using an algorithm, they analyse how these events overlap in both time and space.
The study covers the period from 1980 to 2023 and the world’s land surface, excluding polar regions where CDHEs are rare.
The research finds that the area of land affected by CDHEs has “increased substantially” since the early 2000s.
Heatwave-led events have been the main contributor to this increase, the study says, with their spatial extent rising 110% between 1980-2001 and 2002-23, compared to a 59% increase for drought-led events.
The map below shows the global distribution of CDHEs over 1980-2023. The charts show the percentage of the land surface affected by a heatwave-led CDHE (red) or a drought-led CDHE (yellow) in a given year (left) and relative increase in each CDHE type (right).
The study finds that CDHEs have occurred most frequently in northern South America, the southern US, eastern Europe, central Africa and south Asia.
Threshold passed
The authors explain that the increase in heatwave-led CDHEs is related to rising global temperatures, but that this does not tell the whole story.
In the earlier 22-year period of 1980-2001, the study finds that the spatial extent of heatwave-led CDHEs rises by 1.6% per 1C of global temperature rise. For the more-recent period of 2022-23, this increases “nearly eightfold” to 13.1%.
The change suggests that the rapid increase in the heatwave-led CDHEs occurred after the global average temperature “surpasse[d] a certain temperature threshold”, the paper says.
This threshold is an absolute global average temperature of 14.3C, the authors estimate (based on an 11-year average), which the world passed around the year 2000.
Investigating the recent surge in heatwave-leading CDHEs further, the researchers find a “regime shift” in land-atmosphere dynamics “toward a persistently intensified state after the late 1990s”.
In other words, the way that drier soils drive higher surface temperatures, and vice versa, is becoming stronger, resulting in more heatwave-led compound events.
Daily data
The research has some advantages over other previous studies, Yeh says. For instance, the new work uses daily estimations of CDHEs, compared to monthly data used in past research. This is “important for capturing the detailed occurrence” of these events, says Yeh.
He adds that another advantage of their study is that it distinguishes the sequence of droughts and heatwaves, which allows them to “better understand the differences” in the characteristics of CDHEs.
Dr Meryem Tanarhte is a climate scientist at the University Hassan II in Morocco, and Dr Ruth Cerezo Mota is a climatologist and a researcher at the National Autonomous University of Mexico. Both scientists, who were not involved in the study, agree that the daily estimations give a clearer picture of how CDHEs are changing.
Cerezo-Mota adds that another major contribution of the study is its global focus. She tells Carbon Brief that in some regions, such as Mexico and Africa, there is a lack of studies on CDHEs:
“Not because the events do not occur, but perhaps because [these regions] do not have all the data or the expertise to do so.”
However, she notes that the reanalysis data used by the study does have limitations with how it represents rainfall in some parts of the world.
Compound impacts
The study notes that if CDHEs continue to intensify – particularly events where heatwaves are the precursors – they could drive declining crop productivity, increased wildfire frequency and severe public health crises.
These impacts could be “much more rapid and severe as global warming continues”, Yeh tells Carbon Brief.
Tanarhte notes that these events can be forecasted up to 10 days ahead in many regions. Furthermore, she says, the strongest impacts can be prevented “through preparedness and adaptation”, including through “water management for agriculture, heatwave mitigation measures and wildfire mitigation”.
The study recommends reassessing current risk management strategies for these compound events. It also suggests incorporating the sequences of drought and heatwaves into compound event analysis frameworks “to enhance climate risk management”.
Cerezo-Mota says that it is clear that the world needs to be prepared for the increased occurrence of these events. She tells Carbon Brief:
“These [risk assessments and strategies] need to be carried out at the local level to understand the complexities of each region.”
The post Heatwaves driving recent ‘surge’ in compound drought and heat extremes appeared first on Carbon Brief.
Heatwaves driving recent ‘surge’ in compound drought and heat extremes
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