12/04/2020
- Between January 20 and April 4, PM2.5 levels across the country fell by more than 18 per cent, according to the environment ministry
- But observers say that as soon as the nation’s factories and roads get back to normal, so too will the air pollution levels
Blue skies were an unexpected upside of locking down cities and halting industrial production across China. Photo: AFP
China’s air quality has improved dramatically in recent weeks as a result of the widespread city lockdowns and strict travel restrictions introduced to contain the
. But experts say the blue skies could rapidly disappear as factories and roads reopen under a government stimulus plan to breathe new life into a stalled economy.
According to the Ministry of Ecology and Environment, between January 20 and April 4 the average concentration of PM2.5 – the tiny particles that pose the biggest risk to health – fell by 18.4 per cent from the same period of last year.
Meanwhile, the average number of days with good air quality – determined as when the air pollution index falls below 100 – rose by 7.5 per cent, it said.
Satellite images released by Nasa and the European Space Agency showed a dramatic drop in nitrogen dioxide emissions in major Chinese cities in the first two months of 2020, compared with a year earlier.
According to Nasa, the changes in Wuhan – the central China city at the epicentre of the initial coronavirus outbreak – were particularly striking, while nitrogen dioxide levels across the whole of eastern and central China were 10 to 30 per cent lower than normal.
The region is home to hundreds of factories, supplying everything from steel and car parts to microchips. Wuhan, which has a population of 11 million, was placed under lockdown on January 23, but those
restrictions were lifted on Wednesday
.
Air pollution is likely to return to China’s cities once the lockdowns are lifted. Photo: Reuters
Nitrogen dioxide is produced by cars, power plants and other industrial facilities and is thought to exacerbate respiratory illnesses such as asthma.
The space agency said the decline in air pollution levels coincided with the restrictions imposed on transport and business activities.
That was consistent with official data from China’s National Development and Reform Commission, which recorded a 25 per cent fall in road freight volume and a 14 per cent decline in the consumption of oil products between January and February.
Guangzhou cases prompt shutdown in ‘Little Africa’ trading hub
Liu Qian, a senior climate campaigner for Greenpeace based in Beijing, said the restrictions on industry and travel were the primary reasons for the improvement in air quality.
According to official data, in February, the concentrations of PM2.5, nitrogen dioxide and sulphur dioxide – a toxic gas that comes mostly from industrial burning of coal and other fossil fuels – all fell, by 27 per cent, 28 per cent and 23 per cent, respectively.
“The causes of air pollution are complicated, but the suspension of industrial activity and a drop in public transport use will have helped to reduce levels,” Liu said.
As the epicentre of the Covid-19 pandemic has shifted to the
United States and
, human and industrial activity in China is gradually picking back up, and so is air pollution.
Lauri Myllyvirta, lead analyst with the Centre for Research on Energy and Clean Air in Helsinki, said that levels of nitrogen dioxide pollution, measured both by Nasa satellites and official stations in China, started inching back up in the middle of March and had returned to normal levels by the end of the month.
That coincided with the centre’s findings – published on Carbon Brief, a British website on climate change – that coal consumption at power plants and oil refineries across China returned to their normal levels in the fourth week of March.
How the Wuhan experience could help coronavirus battle in US and Europe
Ma Jun, director of the Institute of Public & Environmental Affairs, a Beijing-based charity, said a stimulus plan to kick-start the economy would have a significant impact on air pollution.
“Once industrial production is fully resumed, so are the emission levels,” he said. “Unless another outbreak happens and triggers another lockdown, which would be terrible, the improvement achieved under the pandemic is unstable and won’t last long.”
After the 2008 financial crisis, Beijing launched a 4 trillion yuan (US$567.6 billion) stimulus package that included massive infrastructure investment, but also did huge damage to the environment. In the years that followed, air pollution rose to record highs and sparked a public backlash.
Even before the
Covid-19 outbreak, China’s economy was slowing – it grew by 6.1 per cent in 2019, its slowest for 29 years – and concerns are now growing that policymakers will go all out to revive it.
“Local governments have been under huge pressure since last year, and there are fears that environmental regulations will be sidelined [in the push to boost economic output],” Ma said.
But Beijing had the opportunity to get it right this time by investing more in green infrastructure projects rather than high-carbon projects, he said.
“A balance between economic development and environmental protection is key to achieving a green recovery, and that is what China needs.”
Source: SCMP
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02/12/2019
- World’s largest coal consumer shows little sign of ending its dependency even though it is also the biggest market for renewable energy sources
- UN climate summit is meeting to discuss ways to limit future warming, but hopes are fading that China will commit to further curbs on emissions
China now accounts for around 30 per cent of the world’s carbon emissions. Photo: AP
As world leaders gather in Spain to discuss how to slow the warming of the planet, the spotlight has fallen on China – the top emitter of greenhouse gases.
China burns about half the coal used globally each year. Between 2000 and 2018, its annual carbon emissions nearly tripled, and it now accounts for about 30 per cent of the world’s total.
Yet it is also the leading market for solar panels, wind turbines and electric vehicles, and it manufactures about two-thirds of solar cells installed worldwide.
“We are witnessing many contradictions in China’s energy development,” said Kevin Tu, a Beijing-based fellow with the Centre on Global Energy Policy at Columbia University. “It’s the largest coal market and the largest clean energy market in the world.”
That apparent paradox is possible because of the sheer scale of China’s energy demands.
Pollution alarm as tourism businesses contaminate home of China’s hairy crab
But as China’s economy slows to the lowest level in a quarter century – around 6 per cent growth, according to government statistics – policymakers are doubling down on support for coal and other heavy industries, the traditional backbones of China’s energy system and economy. At the same time, the country is reducing subsidies for renewable energy.
At the annual United Nations climate summit, this year in Madrid, government representatives will put the finishing touches on implementing the 2015 Paris Agreement, which set a goal to limit future warming to 1.5 to 2 degrees Celsius above pre-industrial levels.
Nations may decide for themselves how to achieve it.
China had previously committed to shifting its energy mix to 20 per cent renewables, including nuclear and hydroelectric energy.
Climate experts generally agree that the initial targets pledged in Paris will not be enough to reach the goal, and next year nations are required to articulate more ambitious targets.
Hopes that China would offer to do much more are fading.
Recent media reports and satellite images suggest that China is building or planning to complete new coal power plants with total capacity of 148 gigawatts – nearly equal to the entire coal-power capacity of the European Union within the next few years, according to an analysis by Global Energy Monitor, a San Francisco-based non-profit.
China is the world’s leading market for wind turbines and other renewables – but is still a major source of emissions. Photo: Chinatopix via AP
Meanwhile, investment in China’s renewable energy dropped almost 40 per cent in the first half of 2019 compared with the same period last year, according to Bloomberg New Energy Finance, a research organisation. The government slashed subsidies for solar energy.
Last week in Beijing, China’s vice-minister of ecology and environment told reporters that non-fossil-fuel sources already account for 14.3 per cent of the country’s energy mix. He did not indicate that China would embrace more stringent targets soon.
“We are still faced with challenges of developing our economy, improving people’s livelihood,” Zhao Yingmin said.
As a fast-growing economy, it was always inevitable that China’s energy demands would climb steeply. The only question was whether the country could power a sufficiently large portion of its economy with renewables to curb emissions growth.
Many observers took hope from a brief dip in China’s carbon emissions between 2014 and 2016. Today the country’s renewed focus on coal comes as a disappointment.
“Now there’s a sense that rather than being a leader, China is the one that is out of step,” said Lauri Myllyvirta, lead analyst at the Centre for Research on Energy and Clean Air in Helsinki.
He notes that several developed countries – including Germany, South Korea and the United States – are rapidly reducing their reliance on coal power.
After climbing sharply for two decades, China’s emissions stalled around 2013 and then declined slightly in 2015 and 2016, according to Global Carbon Budget, which tracks emissions worldwide.
This dip came as Chinese leaders declared a “war on pollution” and suspended the construction of dozens of planned coal power plants, including some in Shanxi.
Pollution scandal near China nature reserve at Tengger desert’s edge
At the same time, the government required many existing coal operators to install new equipment in chimneys to remove sulphur dioxide, nitrous oxide and other hazardous substances. About 80 per cent of coal plants now have scrubbers, said Alvin Lin, Beijing-based China climate and energy policy director for the Natural Resources Defence Council, a non-profit.
As a result, the air quality in many Chinese cities, including Beijing, improved significantly between 2013 and 2017. Residents long accustomed to wearing face masks and running home air-filter machines enjoyed a reprieve of more “blue sky days,” as low-pollution days are known in China.
In the past three years, China’s carbon emissions have begun to rise again, according to Global Carbon Budget.
The coming winter in Beijing may see a return of prolonged smog, as authorities loosen environmental controls on heavy industry – in part to compensate for other slowing sectors in the economy.
The UN Climate Change Conference is taking place in Madrid this month. Photo: AFP
Permits for new coal plants proliferated after regulatory authority was briefly devolved from Beijing to provincial governments, which see construction projects and coal operations as boosts to local economies and tax bases, said Ted Nace, executive director of Global Energy Monitor.
“It’s as though a boa constrictor swallowed a giraffe, and now we’re watching that bulge move through the system,” said Nace. In China, it takes about three years to build a coal plant.
The world has already warmed by 1 degree Celsius. All scenarios envisioned by the Intergovernmental Panel on Climate Change for holding planetary warming to around 1.5 degrees Celsius involve steep worldwide reductions in coal-power generation.
In that effort, other countries rely on Chinese manufacturing to hold down prices on solar panels. wind turbines and lithium-ion batteries.
“China has a really mixed record. On the one hand, it’s seen rapidly rising emissions over the past two decades,” said Jonas Nahm, an energy expert at Johns Hopkins University.
“On the other hand, it’s shown it’s able to innovate around manufacturing – and make new energy technologies available at scale, faster and cheaper.”
Source: SCMP
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CHINDIA ALERT: You'll be living in their world, very soon 