According to Yuan et al. (2018), “studies examining sea surface temperature variability over the past one century and their influence on climate change in China are seriously lacking.” And therefore, in an effort to remedy this information void, the team of eight Chinese scientists developed “the first tree-ring-based dendroclimatic sea surface temperature (SST) reconstruction for the South China Sea.”
In accomplishing their objective Yuan et al. cored 22 Pinus massoniana trees in the Changting Region of the Fujian Province, China. Analysis of the cores revealed a statistically significant relationship between the tree-ring series and gridded March SSTs (1°C resolution) of the South China Sea (16-20°N, 112-116°E). Ultimately, this relationship enabled them to produce a proxy temperature reconstruction over the period 1893-2011, which reconstruction is shown below.
China’s coal mine methane regulations have not curbed growing emissions
Abstract
Anthropogenic methane emissions from China are likely greater than in any other country in the world. The largest fraction of China’s anthropogenic emissions is attributable to coal mining, but these emissions may be changing; China enacted a suite of regulations for coal mine methane (CMM) drainage and utilization that came into full effect in 2010. Here, we use methane observations from the GOSAT satellite to evaluate recent trends in total anthropogenic and natural emissions from Asia with a particular focus on China. We find that emissions from China rose by 1.1 ± 0.4 Tg CH4 yr−1 from 2010 to 2015, culminating in total anthropogenic and natural emissions of 61.5 ± 2.7 Tg CH4 in 2015. The observed trend is consistent with pre-2010 trends and is largely attributable to coal mining. These results indicate that China’s CMM regulations have had no discernible impact on the continued increase in Chinese methane emissions.
Scientists have developed an ‘energy rod’ that can fire multiple shock waves to frack sedimentary rock at depths of up to 3.5km
China has the world’s largest reserves of natural gas but current mining technology makes most of it inaccessible
China is planning to apply the same technology used to detonate a nuclear bomb over Hiroshima during the second world war to access its massive shale gas reserves in Sichuan province. While success would mean a giant leap forward not only for the industry but also Beijing’s energy self-sufficiency ambitions, some observers are concerned about the potential risk of widespread drilling for the fuel in a region known for its devastating earthquakes.
Despite being home to the largest reserves of shale gas on the planet – about 31.6 trillion cubic metres according to 2015 figures from the US Energy Information Administration, or twice as much as the United States and Australia combined – China is the world’s biggest importer of natural gas, with about 40 per cent of its annual requirement coming from overseas.
BEIJING (Reuters) – China’s December coal output climbed 2.1 percent from the year before, government data showed, hitting the highest level in over three years as major miners ramped up production amid robust winter demand and after the country started up new mines.
For all its green talk, China is sticking to fossil fuels
London, 12 December – While leaders of western countries fret about their greenhouse gas emissions in Katowice, China is forging ahead with new projects and investments in coal and gas. According to a new paper from the Global Warming Foundation (GWPF), the Communist Party’s survival depends on delivering economic growth and cleaner air.
China has said it will not approve wind and solar power projects unless they can compete with coal power prices.
Beijing pulled the plug on support for large solar projects, which had been receiving a per kWh payment, in late May. That news came immediately after the country’s largest solar industry event and caught everyone by surprise.
Officials are understood to have been frustrated at seeing Chinese suppliers and engineering firms building solar projects overseas that delivered electricity at prices far below what was available back home.
Trois jours après la clôture de la COP24, l’Agence internationale de l’énergie (AIE) a publié le 18 décembre son rapport annuel consacré au charbon. Elle y souligne le rôle central de cette énergie au niveau mondial et estime que sa consommation globale devrait rester stable dans les 5 prochaines années. Explications.
La consommation de charbon encore appelée à augmenter en Inde et en Asie du Sud-Est
Après deux années de baisse, la consommation mondiale de charbon a augmenté de près de 1% en 2017 et cette hausse devrait se poursuivre en 2018 selon les dernières estimations de l’AIE. Principalement consommé à des fins de production électrique(1), le charbon a encore compté pour 38% de la production mondiale d’électricité en 2017.
Dans son rapport Coal 2018, l’AIE estime que la consommation mondiale de charbon pourrait rester stable d’ici à 2023 : la baisse de la demande envisagée en Europe et en Amérique du Nord serait plus que compensée par une forte croissance de la consommation en Inde et en Asie du Sud-Est selon les prévisions de l’Agence.
by Chriss Street, December 31, 2018 in ClimateChange Dispatch
Despite being lauded by President Obama for signing the Paris UN Climate Change Accords, China is still rapidly expanding greenhouse gas emissions.
President Obama and China’s President Xi Jinping issued a ‘U.S.-China Joint Presidential Statement on Climate Change’on March 31, 2016 stating that both nations were signing the Paris Accords and would take further “concrete steps” to “use public resources to finance and encourage the transition toward low carbon technologies as a priority.”
Scientists have described a fossil plant species that suggests flowers bloomed in the Early Jurassic, more than 174 million years ago, according to new research in the open-access journal eLife.
Before now, angiosperms (flowering plants) were thought to have a history of no more than 130 million years. The discovery of the novel flower species, which the study authors named Nanjinganthus dendrostyla, throws widely accepted theories of plant evolution into question, by suggesting that they existed around 50 million years earlier. Nanjinganthus also has a variety of ‘unexpected’ characteristics according to almost all of these theories.
Patricia Adams is an economist and the executive director of Probe International, a Toronto based NGO that has been involved in the Chinese environmental movement since its beginnings in the mid-1980s.
She is confirming much of what I have said in recent years. The only thing I would take issue with his her description of there being a U-Turn. In my view, China never had the slightest intention of being serious about cutting emissions.
While there’s little cobalt mining in China itself (1 percent of the world’s total output in 2017), Chinese companies have snapped up cobalt mines abroad in recent years, particularly in the Democratic Republic of Congo, the largest source of the metal.
China produces about two thirds of the whole world’s supply of lithium ion batteries, the most common battery type used in electric vehicles. Furthermore, these highly valuable batteries make up a staggering 40 percent of the cars’ value. As it stands, Europe is far from being able to compete with China when it comes to the production of lithium ion batteries. In fact, currently the entire continent is estimated to hold just 1 percent of the market.
by P. Homewood, October 31, 2018 in NotaLotofPeopleKnowThat
China’s power statistics have now been published for Q3, and continue to show thermal generation rising quickly. (Thermal includes coal, gas and biomass).
The rise in thermal generation since last year is more than from all other sources put together.
Biomass is virtually irrelevant in the overall view of things, having only accounted for 1.2% of generation last year.
Once again, we see that China’s unstoppable demand for energy cannot be supplied from wind and solar alone. Indeed. these two sources have only contributed 18% of the extra year-on-year demand.
In overall terms, wind and solar have only supplied 4.6% and 1.3% respectively of China’s generation so far this year.
The large-scale syntheses of global mean temperatures in IPCC fourth report suggested that the Northern Hemisphere temperature in the second half of the 20th century was likely the highest in at least the past 1,300 years and the 1990s was likely the warmest decade. However, this remains debated and the controversy is centered on whether temperatures during the recent half century were higher than those during the Medieval Climate Anomaly (MCA, AD 800–1300) and the Roman Warm Period (RWP, BC 200–AD 400), the most recent two natural warm periods of the late Holocene. Here the high resolution sea surface temperatures (SSTs) of two time windows around AD 990 (±40) and AD 50 (±40), which located in the MCA and RWP respectively, were reconstructed by the Sr/Ca ratio and δ18O of Tradacna gigas shells from the northern South China Sea. The results suggested that the mean SSTs around AD 990 (±40) and AD 50 (±40) were 28.1 °C and 28.7 °C, 0.8 °C and 1.4 °C higher than that during AD 1994–2005, respectively. These records, together with the tree ring, lake sediment and literature records from the eastern China and northwest China, imply that the temperatures in recent decades do not seem to exceed the natural changes in MCA, at least in eastern Asia from northwest China to northern SCS.
A study by the University of Leeds has examined measurements from more than 1600 locations in China and found that more than 50 per cent of the locations showed a significant decrease in concentrations of sulphur dioxide and fine particulates that make up a large portion of air pollution.
The team used datasets from 2015 to 2017 consisting of hourly assessments of concentrations of Nitrogen Dioxide (NO2), Sulphur Dioxide (SO2), Ozone (O3), and fine particles measuring less than 2.5 μm (PM2.5).
by P. Gosselin, September 30, 2018 in NoTricksZone
We have to face it: The West has done our planet no favor by moving industrial production and manufacturing to China. Trump is right, many of factories and industries are better back home, even if it means paying a bit more for products.
Not only does the China use the oceans as a global dump for much of its plastic trash, the country now is gearing up to turn parts of the planet into a toxic solar panel waste dump.
According to French science magazine Futura here, we are looking at a “solar panel time bomb”.
Futura describes how China is installing “gigantic” solar panel farms in remote places like Tibet and how 30 years from now the country will have “mountains of solar panels reaching their end of their lives and that nothing is planned for their collection and recycling.”
Paper Reviewed
Sun, X., Ren, G., Ren, Y., Fang, Y., Liu, Y., Xue, X. and Zhang, P. 2018. A remarkable climate warming hiatus over northeast China since 1998. Theoretical and Applied Climatology133: 579-594.
A prominent feature of all climate model projections is their prediction that temperatures should be rising in response to ever-increasing concentrations of greenhouse gases. However, for the past two decades global surface air temperatures have not warmed to the degree predicted by the models, which lack of warming has been a conundrum to the climate alarmist movement.
China National Petroleum Corp. (CNPC), the largest state-owned producer of oil and natural gas in the country, reportedly plans to nearly double natural gas production from shale sources this year and wants a five-fold increase in such production by 2020.
CNPC said it plans to produce 5.6 billion cubic meters (bcm) (197.8 Bcf) of natural gas from unconventional sources in southwestern Sichuan province in 2018, according to a report Tuesday by Caixin Media Co. Ltd., a Beijing-based news service. The company reportedly plans to drill more than 330 new wells targeting the Sichuan Basin in 2018, and wants to have more than 820 shale gas wells in operation by 2020, with total annual production of 15 bcm (529.7 Bcf). …
Another reason the Paris Accord is collapsing is because it’s not going to do anything we were promised it would.
When it comes to coal, Vahrenholt notes, so far only Europe and Canada have expressed some sort of a commitment to exit coal, and then he reminds us China, India and all developing countries will still be permitted to continue “massively” expanding their use of coal. He writes : (…)
The paper is quite technical and focuses specifically on Chinese temperature trends. But, we think that it will still be of interest to many readers here, especially anybody who is interested in any of the following topics:
Urbanization bias
The homogenization of temperature data
The “early 20th century warm period” found in many parts of the Northern Hemisphere, and
Comparing temperature proxies to instrumental records
by Paul Homewood, May 30, 2018 in NotaLotofPeopleknowThat
China’s carbon emissions growth has accelerated since the beginning of the year, leading to warnings that the country could be headed for its largest annual increase in climate pollution since 2011.
Led by increased demand for coal, oil and gas, China’s CO2 emissions for the first three months of 2018 were 4% higher than they were for the same period in 2017, according to an Unearthed analysis of new government figures.
Analysts have suggested the country’s carbon emissions could rise this year by 5% — the largest annual increase in seven years, back when the airpocalypse was at its peak (…)
La géologie, une science plus que passionnante … et diverse
