Archives par mot-clé : China

A New 1787-2005 Temperature Reconstruction Determines The Coldest 50-Year Period Was 1940-1993

by K. Richard, Mar 4, 2024 in NoTricksZone


The warmest 50-year period in northeastern China occurred from 1844-1893.

Li et al., 2024

“Compared with single years, in general, high or low temperatures that persist for many years will more significantly affect the growth of trees [30]. When we defined years with T12-1 ≥ −10.73 °C (Mean + 1σ) and T12-1 ≤ −12.61 °C (Mean − 1σ) as extreme warm years and cold years, respectively, the reconstruction for the period of 1787–2005 contained 31 cold years and 36 warm years (Table 4). The extreme cold/warm events lasting for three or more consecutive years were discovered in 1965–1967 and 1976–1978/1791–1798, 1844–1849 and 1889–1891. An 11-year smoothing average of the reconstructed T12-1 series was performed to reveal multi-year and interdecadal variations and to detect the several prolonged cold and warm periods (Figure 5d). After smoothing with an 11-yr moving average, cold periods occurred in 1822–1830 (mean T12-1 = −12.7 °C) and 1957–1970 (mean T12-1 = −12.7 °C), while a warm period occurred in 1787–1793 (mean T12-1 = −10.4 °C) (Figure 5d). Rapid and sustained cooling was observed in the reconstructed series in the years 1790–1826 (T12-1 range −10.3 °C to −12.8 °C, mean = −12.0 °C) and 1939–1969 (T12-1 range −11.6 °C to −12.7 °C, mean = −12.1 °C), where the rates of cooling were about 0.067 °C/year and 0.035 °C/year, respectively (Figure 5d). The two cooling events may be due to the decrease in solar activity [48,49,50]. Using a 50-year time scale, the highest temperature occurring during 1787–2005 was from 1844 to 1893 (T12-1 range −12.79 °C to −9.41 °C, mean = −11.15 °C), similar results were also obtained by Zhu et al. and Jiang et al., while the lowest temperature was from 1940–1993 (T12-1 range −13.57 °C to −10.26 °C, mean = −12.13 °C) (Figure 5d) [33].”

Mount Pinatubo eruption caused the major East China flood in 1991

by C. Xing & F. Liu, Jan 2023 in InnovativeGeoscience


The devastating flood of 2020 along the Yangtze River serves as a painful reminder of the 1991 East China’s largest flood. The latter event profoundly impacted the Yangtze-Huaihe River basins (YHRBs), causing extensive damage to both human lives and property1. The flood engulfed numerous villages and cities across seven provinces in East China, affecting over 15,000,000 hectares of farmland and approximately 100 million people. In response, millions of individuals in Anhui and Jiangsu provinces were forced to evacuate, with some seeking refuge on the banks of the Huaihe River. Gaining a comprehensive understanding of the contributing factors to this historically significant flood will enhance our ability to predict the East Asian summer monsoon and mitigate related climate disasters. Over the past three decades, this pursuit has been a persistent challenge1,2,3.

The 1991 East China flood was attributed to prominent intraseasonal oscillations, as evidenced by three episodes of heavy rain occurring from mid-May to mid-July over the YHRBs2, primarily linked to the persistent Meiyu front during early July1. The stable western Pacific subtropical high (WPSH), which plays a crucial role in influencing the East Asian monsoon by altering the convergence of southeasterly and southwesterly, provided substantial support for the prolonged existence of the Meiyu front in 19911; However, the reason behind the prolonged stability of the WPSH during that specific period remains a mystery.

No internal climate variability modes were reported to be in their most flood-favorable conditions during 1991, and the effect of external forcing on this flood disaster was not taken into consideration at all. Half a month before the flood, the Mount Pinatubo (located at 120.4ºE, 15.1ºN) in Luzon, the Philippines, explosively erupted on June 15th, 1991, which later is known as one of the strongest volcanic eruption in the past century. This eruption released approximately 20 Tg of SO2 into the tropical stratosphere4, which can form stratospheric aerosol that impact the global radiative balance. The stratospheric volcanic aerosol acts as a major forcing on the climate by cooling the global surface and slowing down the water cycle on annual to decadal timescales5. However, it remains unclear whether explosive volcanic eruptions have short-term impacts on the climate, particularly on the intraseasonal timescale.

Beijing’s Coal Boom Is Here to Stay

by Vijay Jayaraj, Nov 2023 in CO2Coalition


News of record installations of so-called renewable energy electric generation in China may have kindled the hopes of those supporting the “green” agenda and hostile to fossil fuels. However, China is in no position to give up hydrocarbons, particularly coal.

During the first half of 2023, China approved 52 gigawatts (GW) of new coal power, which was more than all the approvals issued in 2021. These new approvals are in addition to the 136 GW of coal capacity that are already under construction. Together, these new plants represent more than 67% of all new approvals in the world.

Why is China doing this despite climate pledges? And what does the future hold?

New Reconstructions From Brazil, China, Europe Indicate No Net Warming In Recent Centuries

by K. Richard, Oct 26, 2023 in NoTricksZone


Paleoclimate studies continue to undermine claims of “unprecedented” global warming in the modern era.

A new temperature reconstruction (Oliveira Silva Muraja et al., 2023) for Brazil reveals there has been no net modern warming since the 1400s.

 

Another new temperature reconstruction (Yue et al., 2023) indicates there has been no net modern warming in Central China since the 1400s.

China Restricts Exports of Graphite, Key Mineral Used for Making EV Batteries

by M. Wilowski, Oct 20, 2023 in Investopedia


KEY TAKEAWAYS

  • China’s Ministry of Commerce on Friday curbed exports of graphite, a critical mineral used in the production of lithium-ion batteries for electric vehicles (EVs).
  • The move could make a shortage of graphite more likely at a time when worldwide EV demand is soaring.
  • China last year accounted for close to two-thirds of global production of graphite and all but 2% of spherical graphite output, the final product used in anodes for lithium-ion batteries.
  • EV makers such as Tesla, Rivian, and Lucid Motors, as well as traditional automakers that have developed their own EVs in recent years, could be at risk of production shortages.
  • With potential shortages looming, U.S. government officials have sought to incentivize domestic production of graphite and other minerals used in clean energy technologies.

China Abandons Paris Agreement, Making U.S. Efforts Painful and Pointless

by D. Furchgott-Roth, Jul 26, 2023 in TheHeritageFondation


It was a bad week for anyone who thought China would cooperate on emissions reduction. President Xi Jinping reiterated that his country would set its own path on the issue and not be influenced by outside factors, according to the Washington Post and Bloomberg. This contradicts Xi’s 2015 Paris Agreement pledges to reduce its carbon emissions at the latest after 2030.

Xi’s remarks came while climate envoy and former secretary of state John Kerry was visiting Beijing to reopen a dialogue. This was shortly after Secretary of State Antony Blinken arrived, and just before former secretary of state Henry Kissinger, the architect of opening China to the West 50 years ago, came for a visit.

The clear signals from China are a deliberate slap in the face to America and provide a rationale for a bill sponsored by Representative Chip Roy (R., Texas) to defund Kerry’s climate-change office at the State Department. The bill is cosponsored by over two dozen other House Republicans.

This should not be news, because Xi gave the same message last fall. In October 2022, he said that China would not abandon coal-fired power plants before renewables could substitute for the lost fossil fuel. But this substitution will not occur because fossil fuels generate substantially more energy than renewables.

Record Temperature In China Not All It Seems

by P. Homewood, Jul 18, 2023 in NotaLotofPeopleKnowThat


BEIJING, July 17 (Reuters) – A remote township in China’s arid northwest endured temperatures of more than 52 Celsius (126 Fahrenheit) on Sunday, state media reported, setting a record for a country that was battling minus 50C weather just six months ago.

Temperatures at Sanbao township in Xinjiang’s Turpan Depression soared as high as 52.2C on Sunday, state-run Xinjiang Daily reported on Monday, with the record heat expected to persist at least another five days.

The Sunday temperature broke a previous record of 50.3C, measured in 2015 near Ayding in the depression, a vast basin of sand dunes and dried-up lakes more than 150 m (492 ft) below sea level.

https://www.reuters.com/world/china/china-logs-522-celsius-extreme-weather-rewrites-records-2023-07-17/

I can’t see the heatwave in Beijing particularly affecting that family crossing the road! Looks like they’re having a nice day out.

But back to Sanbao, which sits in the Turpan Depression that is as much as 150m below sea level. According to Wikipedia, the Turpan has a harsh desert climate, and is counted as one of the Furnaces of China. It is believed to be the second or third deepest depression on Earth. it is also the hottest and driest area in China during the summer.

China’s Coal Power Building Plans Are Still at a Frenzied Pace

by D. Murtaugh, Apr 24, 2023 in Bloomberg


Provincial governments gave the green light to at least 20.5 gigawatts of new coal in the first quarter, topping the 18.5 gigawatts for all of 2021, Greenpeace said in a new research report. Approvals began to soar last year, to at least 90.7 gigawatts, after a series of economy-crippling power shortages, according to the study.

Greenpeace’s report is the latest in a series of research findings and industry comments highlighting Beijing’s plan to rely on its mainstay fuel as a backstop for reliable and affordable power amid rising global fuel prices and the development of intermittent renewable generation. The government is also leaning on miners to boost coal output to record levels to avoid a reliance on foreign supplies.

“The 2022 coal boom has clearly continued into this year,” said Xie Wenwen, Greenpeace East Asia climate and energy campaigner. Reasons given by governments in approval documents included ensuring safe energy supply, meeting heating demand and stimulating local economic development, Xie said.

see also here : Coal in India 

New Study: Roman And Medieval Warm Periods Were 2.8°C Warmer Than 1970-2000 In Central China

by K. Richard, Mar 13, 2023 in NoTricksZone


A series of paleoclimate lake reconstructions across China in recent years have failed to support the global-scale warming narrative.

Per a new lake temperature reconstruction (Li et al., 2023) from Central China, there were distinct “warm intervals during the RWP [Roman Warm Period] (403–413 CE), with a temperature 2.89°C higher than that of the mean for 1970–2000 CE, and during the MWP [Medieval Warm Period] (864–882 and 965–994 CE), when the temperature was 2.81°C higher.”

There are 8 other lake sediment reconstructions from the region (Qinghai, Gahai, Sugan, Kusai, Tiancai, Heiahi, Lugu, Cuoqia) documented in the study. None of the 8 are shown to have a modern temperature uptick that would support the claims of an unusually warm modern climate relative to past millennia.

China leans on coal amid energy security push

by A. Hayley, Mar 6, 2023 in Reuters


  • State planner says to increase coal production
  • Sees coal ‘supporting’ expansion of renewables
  • Calls for controls on replacing coal with gas
  • Indicates higher gas prices coming for urban users

BEIJING, March 5 (Reuters) – China’s state planner underlined a greater role for coal in its power supply on Sunday, saying the fossil fuel would be used to improve the reliability and security of its energy system.

Soaring global energy prices following Russia’s invasion of Ukraine and domestic supply disruption have prompted Beijing to step up its focus on energy security in recent years.

The world’s second-biggest economy relied on coal to generate 56.2% of its electricity last year, according to data from the National Bureau of Statistics, but has significantly boosted its use of natural gas and renewable energy in recent years to lower carbon emissions.

China approves biggest expansion in new coal power plants since 2015

by P. Homewood, Feb 27, 2023 in NotaLotofpeopleKnowThat


When will Western leaders realise they have been hoodwinked by China?

China approved the construction of another 106 gigawatts of coal-fired power capacity last year, four times higher than a year earlier and the highest since 2015, research shows.

Over the year, 50GW of coal power capacity went into construction across the country – up by more than half compared with the previous year – driven by energy security considerations, the Centre for Research on Energy and Clean Air (CREA) and Global Energy Monitor (GEM) said on Monday.

“The speed at which projects progressed through permitting to construction in 2022 was extraordinary, with many projects sprouting up, gaining permits, obtaining financing and breaking ground apparently in a matter of months,” said GEM analyst Flora Champenois.

The amount of new capacity connected to the grid had slowed in recent years after a decline in new approvals over the 2017-2020 period, but it is set to rebound over the next few years, driven by concerns about power shortages.

Many of the newly approved projects were identified as “supporting” baseload capacity designed to ensure the stability of the power grid and minimise blackout risks, the CREA-GEM report said.

However, many were being built in regions that already had a clear capacity surplus, and power supply problems would be better addressed by improving grid reliability and efficiency, the authors said.

China suffered a wave of blackouts in September 2021 as a result of coal supply shortages, cutting off thousands of homes and factories. A long drought last year also saw a dramatic drop in hydropower generation and the rationing of electricity.

China Climate Advisers Say More Coal Needed for Energy Security

by A. Cang, Nov 15, 2022 in Bloomberg


China’s plans to add to its world-leading fleet of coal power plants are a short-term Band-Aid to address energy security concerns and don’t represent a shift in emissions policies, according to members of the team representing the nation at the COP27 summit.

New plants are being planned to address a spate of high-profile electricity shortages in recent years while providing a buffer to global energy markets that have become more volatile following Russia’s invasion of Ukraine, according to interviews with three of China’s delegates at the climate meeting in Egypt.

In the long run, electricity market reforms and massive investments in renewable power and energy storage will eventually curb and curtail coal use, allowing the country to hit its targets of peaking emissions by 2030 and zeroing them out by 2060, they said.

India, China Emissions Make Mockery of Western Policies

by  V. Jayaraj, Sep 23, 2022 in CO2Coalition


Amidst the European energy crisis, it’s easy to miss other events that are of significance to the discussion about the climate-change movement.

Among them are a series of setbacks to green policies in China and India.

These countries — representing three billion people — have delayed implementation of renewable energy commitments and aggressively increased the production and consumption of fossil fuels.

At the Shanghai Cooperation Organization summit, Chinese and Indian leaders — along with their counterparts from Russia and Turkey — explicitly declared that they cannot be coerced into reducing fossil fuel consumption, calling for an “increased investment in oil and gas production and exploration.”

As usual, the mainstream media neither published this news in headlines nor discussed how the proliferation of fossil fuels in these countries make the so-called net zero measures in the West irrelevant to the objectives of climate alarmists.

As the world’s second biggest coal user and home to 1.3 billion people, India has deemphasized its commitment to transitioning to renewable energy.

According to reports, the country fell significantly short of its solar-installation targets, jeopardizing its overall transition goals.

India’s Economic Times reported that at least 25 gigawatts (GW) of solar power projects that were expected to be operational or nearly complete faced delays or uncertainties.

The deferrals of solar installations now make it impossible to attain the planned addition of 450 GW in renewable capacity by 2030.

The Times says India “added 10 GW of solar capacity in 2021, while it needs to add close to 30 GW every year to be able to meet the target.”

The National Solar Mission — India’s internationally renowned solar energy strategy — is in disarray, with only half its promised capacity in place.

India considers coal plants an integral part of its energy sector.

China’s Coal-Fired Power Boom Is Soaring To New Levels

by WJS Editorial Board, Sep 13, 2022 in ClimateChangeDispatch


An unspoken truth of the climate-change crusade is this: Anything the U.S. does to reduce emissions won’t matter much to global temperatures.

U.S. cuts will be swamped by the increases in India, Africa, and especially China. Look no further than China’s boom in new coal-fired electricity.

Under the nonbinding 2015 Paris climate agreement, China can increase its emissions until 2030. And is it ever. [bold, links added]

Between 2015 and 2021, China’s emissions increased by some 11%, according to the Climate Action Tracker, which evaluates nationally determined contributions under the Paris agreement.

The U.S. has reduced its emissions by some 6% between 2015 and 2021. Beijing made minimal new commitments at last year’s Glasgow confab on climate, despite world pressure.

S&P Global Commodity Insights recently estimated that China is planning or building coal-fired power plants with a total capacity of at least 100 gigawatts. Those are merely the projects whose development status is confirmed, so the real number is almost certainly higher.

The total U.S. power capacity is some 1,147 gigawatts. One gigawatt is enough energy to power as many as 770,000 homes.

The nonprofit Global Energy Monitor tracks coal-fired power projects worldwide of 30 megawatts or more, including those planned for the long-term.

It estimates that, as of July 2022, China had some 258 coal-fired power stations—or some 515 individual units—proposed, permitted, or under construction. If completed, they would generate some 290 gigawatts, more than 60% of the world’s total coal capacity under development.

Global Energy Monitor also reports that as of July China had 174 new coal mines or coal-mine expansions proposed, permitted, or under construction that when complete would produce 596 million metric tonnes per year.

A Tropical Plant’s Warmth Threshold Affirms Mid-Holocene Temps Were ‘7.7°C Higher Than Today’

by K. Richard, July 25, 2022 in NoTricksZone


A warmth-demanding plant can provide us with solid evidence of a much warmer than today Mid-Holocene climate.

Growth of the tropical aquatic plant ceases when air temperatures fall below 10°C.

A new study says that from about 8000 to 5000 years ago it was warm enough in winter that could grow at the 40°N latitude in northern China. Today its warmth threshold growth limit is ~34°N.

Scientists can therefore deduce the Mid-Holocene winter temperatures needed to have been “7.7°C higher than today” at that time.

….

China ignores climate pledges, tops list in building new coal plants

by The Print, Apr 27, 2022


Beijing [China], April 27 (ANI): Putting the pledges to reach net-zero emissions by 2060 at bay, China is still leading the world in building new coal plants, showed a major annual survey.

Global Energy Monitor’s (GEM) eighth annual survey of the world’s coal plant pipeline on Tuesday reveals that China, the world’s top greenhouse gas polluter, continued to lead all countries in the domestic development of new coal plants, commissioning more new coal capacity in 2021 than the rest of the world combined, reported Straits Times.

Furthering the worries, China’s coal consumption is meant to peak in 2025. China is the world’s largest assembly of coal power plants and this building of new coal plants is posing a critical risk of climate change.

Lauri Myllyvirta, lead analyst for research organisation Centre for Research on Energy and Clean Air, which contributed to GEM’s report said, “The power industry’s plan, which appears to have [Chinese] government backing, at least for now, is for coal power capacity to increase until 2030. So new plants are adding more capacity, not just replacing retirements. Last year saw retirements, in fact, slow down.”

By the end of 2021, a total of 176GW of coal capacity was under construction in 20 countries, which is slightly less than in 2020. China represented more than half (52 per cent) of that capacity, and countries in South Asia and Southeast Asia made up a total of 37 per cent.

Flora Champenois from GEM said, “The coal plant pipeline is shrinking, but there is simply no carbon budget left to be building new coal plants. We need to stop, now.”

The report also found that total coal power capacity under development declined 13 per cent last year. Moreover, with the ongoing war in Ukraine, some countries are delaying coal plant retirements as they scramble for energy supplies to keep the lights on.

According to the analysts, this move might temporarily set back global efforts to phase out coal, though soaring coal prices might also prompt some nations to speed up investment in green energy.

Myllyvirta told Straits Times, “The world is experiencing a fossil fuel price shock, leading to overall reduced fossil fuel demand and accelerated plans for clean energy development, reported Straits Times.

“European countries, in particular, have announced very ambitious plans for clean energy and energy efficiency as a part of the effort to end reliance on fossil fuel imports from Russia. These factors will lower coal demand in the coming years,” he added. (ANI)

This report is auto-generated from ANI news service. ThePrint holds no responsibility for its content.

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China plans massive increase in coal mining

by Bloomberg, Mar 15, 2022 in ClimateDepot


China plans a massive increase in coal mining, a move that will dramatically reduce its reliance on imports and deal a blow to its near-term climate actions.

The National Development and Reform Commission, the nation’s top economic planner, told officials from major mining regions at a meeting late last week that it wants to boost domestic production capacity by about 300 million tons, according to people familiar with the matter. It also plans to build a 620 million-ton stockpile of the fuel split between government, miners and users.

Such an increase in output would cut the country’s already scant dependence on foreign imports after global prices hit record levels in the wake of Russia’s invasion of Ukraine. The measures also highlight concerns that China’s reliance on fossil fuels remains as entrenched as ever, as it seeks to enhance energy security to limit disruptions to economic growth, regardless of the impact on its climate goals.

It’s hard to overstate the importance to China of coal, the most-polluting fossil fuel. The nation produces and consumes more than half of global supply, and it’s the biggest contributor to its world-leading greenhouse gas emissions. China has said that coal consumption should begin to fall off in the second half of this decade as it strives to peak emissions across the economy by 2030.

The production increase would be split, with 150 million tons of capacity coming from new, upgraded operations and another 150 million from open-pit mines and some mines that had previously been shut. Daily output should average 12.6 million tons, according to the NDRC, which is even higher than the record-breaking levels reached in the fall after shortages caused widespread industrial brownouts.

The NDRC didn’t give a timeline for the ramp-up, but if last year’s all-out push on production is anything to go by, it could happen relatively quickly. The added 300 million tons of capacity is equivalent to China’s typical annual imports. The nation produced over 4 billion tons of its own coal last year.

The new edicts on supply follow other measures intended to guarantee a smoothly running power system, which still relies on coal for about 60% of its needs. The government has ordered mines and power plants to sign medium and long-term contracts for 100% of their generation, and will enforce a price range of between 570 and 770 yuan a ton for those supplies.

China’s Climate Goals Hinge on a $440 Billion Nuclear Buildout

by D. Murtaugh & K. Chia, Nov 2, 2021 in BloombergGreen


China is planning at least 150 new reactors in the next 15 years, more than the rest of the world has built in the past 35.

Nuclear power once seemed like the world’s best hope for a carbon-neutral future. After decades of cost-overruns, public protests and disasters elsewhere, China has emerged as the world’s last great believer, with plans to generate an eye-popping amount of nuclear energy, quickly and at relatively low cost.

China has over the course of the year revealed the extensive scope of its plans for nuclear, an ambition with new resonance given the global energy crisis and the calls for action coming out of the COP26 Climate Summit in Glasgow. The world’s biggest emitter, China’s planning at least 150 new reactors in the next 15 years, more than the rest of the world has built in the past 35. The effort could cost as much as $440 billion; as early as the middle of this decade, the country will surpass the U.S. as the world’s largest generator of nuclear power.

Presidents Xi and Putin (and the Hedge Funds!) are laughing at us

by P. Homewood, Nov 8, 2021 in NotaLotofPeople KnowThat


The gap between rhetoric and fact is a perennial feature of politics. But seldom can the chasm between claim and reality have been as wide as that displayed by Alok Sharma at the Cop26 conference in Glasgow. The British president of the latest intergovernmental climate change gathering told the delegates (and the world’s media) that “the end of coal is in sight”, as a result of the agreement he had negotiated.


That was the rhetoric. Now the fact. Not only was the declaration to phase out coal by the 2040s not signed by the world’s top three consumers (China, India and America, which account for more than 70 per cent of the global CO2 emissions from burning the stuff); the pledge itself was neutered by the addition of the get-out “or as soon as possible thereafter”.

Asia Building Hundreds Of Coal Power Plants

by P. Homewood, Oct 29, 2021 in NotaLotofPeopleKnowThat


UDANGUDI, India/TOKYO, Oct 29 (Reuters) – On the coastline near India’s southern tip, workers toil on a pier carrying a conveyor belt that cuts a mile into the Indian Ocean where the azure waters are deep enough for ships to berth and unload huge cargoes of coal.

The belt will carry millions of tonnes of coal each year to a giant power plant several kilometres inland that will burn the fuel for at least 30 years to generate power for the more than 70 million people that live in India’s Tamil Nadu state.

The Udangudi plant is one of nearly 200 coal-fired power stations under construction in Asia, including 95 in China, 28 in India and 23 in Indonesia, according to data from U.S. nonprofit Global Energy Monitor (GEM).

This new fleet will produce planet-warming emissions for decades and is a measure of the challenge world leaders face when they meet for climate talks in Glasgow, where they hope to sound the death knell for coal as a source of power.

Coal use is one of the many issues dividing industrialised and developing countries as they seek to tackle climate change.

Many industrialised countries have been shutting down coal plants for years to reduce emissions. The United States alone has retired 301 plants since 2000.

But in Asia, home to 60% of the world’s population and about half of global manufacturing, coal’s use is growing rather than shrinking as rapidly developing countries seek to meet booming demand for power.

More than 90% of the 195 coal plants being built around the world are in Asia, according to data from GEM.

Tamil Nadu is India’s second-most industrialised state and is one of the country’s top renewable energy producers. But it is also building the most coal-fired plants in the country. read more

“We cannot depend on just solar and wind,” a senior official at Tamil Nadu Generation and Distribution Corp told Reuters.

“You can have the cake of coal and an icing of solar,” he said, declining to be named as he was not authorised to speak to media.

Full story here.

 

Strong Link Between Solar Activity And Rapid Cooling (2-3°C/Century) In China During The Last 5000 Years

by K. Richard , July 5, 2021 in NoTricksZone


China’s climate history includes multiple climate warming and cooling fluctuations of 4°C within centuries, with cold periods aligning with declines in solar irradiance.

According to a new study (Zhang et al., 2021), northern China’s coldest temperatures of the last 5000 years occurred 300 calibrated years before present (cal yr BP), coinciding with the Little Ice Age and a decrease in solar irradiance. This  frigid period was was followed by a ~4°C  warm-up (from about 3.5°C to 7.5°C) within the span of about 150 years during the middle of the Qing Dynasty (1644-1912 CE), which was well before anthropogenic CO2 emissions began sharply rising.

The warmest temperatures of the last millennium occurred during the Medieval Warm Period (Song Dynasty, 960-1279 CE).

Rapid cooling periods of multiple degrees per century also coincided with the collapse of ancient civilizations, or dynasties, as wars and social unrest were often associated with competition for access to natural resources (such as water during droughts).

Shock News–China 5-Year Plan Will Increase Emissions

by P. Homewood, March 6, 2021 in NotaLotofPeopleKnowThat


China has set out an economic blueprint for the next five years that could lead to a strong rise in greenhouse gas emissions if further action is not taken to meet the country’s long-term goals.

The 14th five-year plan, published in Beijing on Friday, gave few details on how the world’s biggest emitter would meet its target of reaching net zero emissions by 2060, set out by President Xi Jinping last year, and of ensuring that carbon dioxide output peaks before 2030.

China will reduce its “emissions intensity” – the amount of CO2 produced per unit of GDP – by 18% over the period 2021 to 2025, but this target is in line with previous trends, and could lead to emissions continuing to increase by 1% a year or more. Non-fossil fuel energy is targeted to make up 20% of China’s energy mix, leaving plenty of room for further expansion of the country’s coal industry.

Swithin Lui, of the Climate Action Tracker and NewClimate Institute, said: “[This is] underwhelming and shows little sign of a concerted switch away from a future coal lock-in. There is little sign of the change needed [to meet net zero].”

Zhang Shuwei, chief economist at Draworld Environment Research Centre, said: “As the first five-year plan after China committed to reach carbon neutrality by 2060, the 14th five-year plan was expected to demonstrate strong climate ambition. However, the draft plan presented does not seem to meet the expectations. The international community expected China’s climate policy to ‘jump’, but in reality it is still crawling.”

Unusually, this five-year plan did not set out GDP targets for the whole five-year period, but allowed for annual targets, with the first for this year a target of 6% growth. The Centre for Research on Energy and Clean Air said that coupled with the emissions intensity target, this could allow the growth rate of China’s emissions to speed up even further, rather than slow down, as is needed.

https://www.theguardian.com/world/2021/mar/05/china-five-year-plan-emissions

China Facing Winter Blackouts

by P. Homewood, Dec 23, 2020 in NotaLotofPeopleKnowThat


There’s an interesting story emerging from China:

BEIJING: Tens of millions across China are facing power shortages in below-freezing winter temperatures, as three provinces impose curbs on electricity use due to surging demand and a squeezed coal supply.

Residents, factories and businesses in Hunan, Zhejiang and Jiangxi provinces have been ordered to ration electricity with some areas citing a shortfall in coal supplies, according to local media reports and government notices.

China’s rebound from the Covid-19 pandemic has been driven by energy intensive industries such as construction, heaping pressure on the power grid and coal supplies, said Lauri Myllyvirta, lead analyst at the Centre for Research on Energy and Clean Air.

Earlier this month, Hunan authorities ordered all billboards and outdoor lighting on buildings to power off for long periods each day and a temperature cap on indoor heating at entertainment venues.

Hunan faces a shortfall of 3-4 million kilowatts of electricity this winter, local officials admitted last week, as demand soars due to unusually cold weather that will hit as low as -10°C.

Office workers in provincial capital Changsha complained on social media about being forced to climb dozens of flights of stairs and freezing indoor temperatures as a result of frequent power outages.

“My office heating has already been stopped, and there were blackouts on Dec 1, 3 and 5. Temperatures will drop to -8°C around New Year’s Day, will I freeze to death in Hunan?” one Weibo user wrote last week.

Meanwhile in Zhejiang province, factories in the manufacturing hub of Yiwu have been told to stop operations and streetlights have been turned off at night as part of an emissions-saving drive by the local government, according to media reports and photos circulated on Weibo.

CITY OF BEIJING JUST RECORDED ITS COLDEST TEMPERATURE SINCE 1966

by Cap Allon, Jan 7, 2021 in Electroverse


The mercury in China’s capital Beijing plunged to -19.6C (-3.3F) on Thursday morning, January 7 as the powerful Arctic air mass currently gripping the majority of Asia intensified further.

The reading marked the capital’s coldest temperature since 1966 (solar minimum of cycle 19), in record-books dating back to 1912.

Furthermore, 10 out the 20 national-level meteorological stations in Beijing registered their lowest-ever early-January temperatures Thursday morning.

Blue alerts remain in effect across much of China as record low temperature and heavy snow are forecast to linger, at least until the weekend.

 

The intense cold wave began in mid-December, and is the result of Arctic air spilling down over the Asian continent (see low solar activity and meridional jet stream). Many all-time cold records have fallen across China of late…

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