Impact of the COVID-19 pandemic on the environment


show a stark drop in pollution in Wuhan, when comparing NO2 levels in early 2019 and early 2020.

The worldwide disruption caused by the COVID-19 pandemicpandemic has resulted in numerous impacts on the environment and the climate. The considerable decline in planned travel has caused many regions to experience a large drop in air pollution. In China, lockdowns and other measures resulted in a 25per cent reduction in carbon emissions and50 per cent reduction in nitrogen oxides emissions, which one Earth systems scientist estimated may have saved at least 77,000 lives over two months. Other positive impacts on the environment include governance-system-controlled investments towards a sustainable energy transition and other goals related to environmental protection such as the European Union's seven-year €1 trillion budget proposal and €750 billion recovery plan "Next Generation EU" which seeks to reserve 25% of EU spending for climate-friendly expenditure.
However, the outbreak has also provided cover for illegal activities such as deforestation of the Amazon rainforest and poaching in Africa, hindered environmental diplomacy efforts, and created economic fallout that some predict will slow investment in green energy technologies.

Background

Up to 2020, increases in the amount of greenhouse gases produced since the beginning of the industrialization era caused average global temperatures on the Earth to rise, causing effects including the melting of glaciers and rising sea levels. In various forms, human activity caused environmental degradation, an anthropogenic impact.
Prior to the COVID-19 pandemic, measures that were expected to be recommended to health authorities in the case of a pandemic included quarantines and social distancing.
Independently, also prior to the COVID-19 pandemic, researchers argued that reduced economic activity would help decrease global warming as well as air and marine pollution, allowing the environment to slowly flourish. This effect has been observed following past pandemics in 14th century Eurasia and 16th-17th century North and South America.
Researchers and officials have also called for biodiversity protections to form part of COVID-19 recovery strategies.

Air quality

Due to the coronavirus outbreak's impact on travel and industry, many regions and the planet as a whole experienced a drop in air pollution. Reducing air pollution can reduce both climate change and COVID-19 risks but it is not yet clear which types of air pollution are common risks to both climate change and COVID-19. The Centre for Research on Energy and Clean Air reported that methods to contain the spread of coronavirus, such as quarantines and travel bans, resulted in a 25per cent reduction of carbon emission in China. In the first month of lockdowns, China produced approximately 200 million fewer metric tons of carbon dioxide than the same period in 2019, due to the reduction in air traffic, oil refining, and coal consumption. One Earth systems scientist estimated that this reduction may have saved at least 77,000 lives. However, Sarah Ladislaw from the Center for Strategic & International Studies argued that reductions in emissions due to economic downturns should not be seen as beneficial, stating that China's attempts to return to previous rates of growth amidst trade wars and supply chain disruptions in the energy market will worsen its environmental impact. Between 1 January and 11 March 2020, the European Space Agency observed a marked decline in nitrous oxide emissions from cars, power plants, and factories in the Po Valley region in northern Italy, coinciding with lockdowns in the region.
NASA and ESA have been monitoring how the nitrogen dioxide gases dropped significantly during the initial Chinese phase of the COVID-19 pandemic. The economic slowdown from the virus drastically dropped pollution levels, especially in cities like Wuhan, China by 25-40%. NASA uses an ozone monitoring instrument to analyze and observe the ozone layer and pollutants such as NO2, aerosols and others. This instrument helped NASA to process and interpret the data coming in due to the lock-downs worldwide. According to NASA scientists, the drop in NO2 pollution began in Wuhan, China and slowly spread to the rest of the world. The drop was also very drastic because the virus coincided with the same time of year as the lunar year celebrations in China. During this festival, factories and businesses were closed for the last week of January to celebrate the lunar year festival. The drop in NO2 in China did not achieve an air quality of the standard considered acceptable by health authorities. Other pollutants in the air such as aerosol emissions remained.
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A joint research led by scientists from China and U.S. estimated that nitrogen oxides emissions decreased by 50% in East China from 23 January to 9 February 2020 in comparison to the period from 1 to 22 January 2020. Emissions then increased by 26% from 10 February to 12 March 2020, indicating possible increasing socioeconomic activities after most provinces allowed businesses to open. It is yet to be investigated what COVID-19 control measures are most efficient controlling virus spread and least socioeconomic impact.

Water quality

In Venice, water in the canals cleared and experienced greater water flow. The increase in water clarity was due to the settling of sediment that is disturbed by boat traffic and mentioned the decrease in air pollution along the waterways.

Wildlife

Demand for fish and fish prices have both decreased due to the pandemic, and fishing fleets around the world sit mostly idle. German scientist Rainer Froese has said the fish biomass will increase due to the sharp decline in fishing, and projected that in European waters, some fish such as herring could double their biomass. As of April 2020, signs of aquatic recovery remain mostly anecdotal.
As people stayed at home due to lockdown and travel restrictions, some animals have been spotted in cities. Sea turtles were spotted laying eggs on beaches they once avoided, due to the lowered levels of human interference and light pollution. In the United States, fatal vehicle collisions with animals such as deer, elk, moose, bears, mountain lions fell by 58% during March and April.
Conservationists expect that African countries will experience a massive surge in bush meat poaching. Matt Brown of the Nature Conservancy said that "When people don't have any other alternative for income, our prediction -- and we're seeing this in South Africa -- is that poaching will go up for high-value products like rhino horn and ivory." On the other hand, Gabon decided to ban the human consumption of bats and pangolins, to stem the spread of zoonotic diseases, as the novel coronavirus is thought to have transmitted itself to humans through these animals. In June 2020, Myanmar allowed breeding of endangered animals such as tigers, pangolins, and elephants. Experts fear that the Southeast Asian country's attempts to deregulate wildlife hunting and breeding may create "a New Covid-19."

Deforestation and reforestation

The disruption from the pandemic provided cover for illegal deforestation operations. This was observed in Brazil, where satellite imagery showed deforestation of the Amazon rainforest surging by over 50per cent compared to baseline levels. Unemployment caused by the COVID-19 pandemic facilitated the recruitment of labourers for Pakistan's 10 Billion Tree Tsunami campaign to plant 10 billion trees – the estimated global annual net loss of trees – over the span of 5 years.

Carbon emissions

A study published in May 2020 found that the daily global carbon emissions during the lockdown measures in early April fell by 17% and could lead to an annual carbon emissions decline of up to 7%, which would be the biggest drop since World War II according to the researchers. They ascribe these decreases mainly to the reduction of transportation usage and industrial activities. However, it has been noted that [|rebounding] could diminish reductions due to the more limited industrial activities. Nevertheless, societal shifts caused by the coronavirus lockdowns – like widespread telecommuting and the use of virtual conference technology – may have a more sustained impact beyond the short term reduction of transportation usage. Despite of this the concentration of carbon dioxide in the atmosphere was the highest ever recorded in human history in May 2020. Energy and climate expert Constantine Samaras states that "a pandemic is the worst possible way to reduce emissions" and that "technological, behavioural, and structural change is the best and only way to reduce emissions". Tsinghua University’s Zhu Liu clarifies that "only when we would reduce our emissions even more than this for longer would we be able to see the decline in concentrations in the atmosphere". The world's demand for fossil fuels has decreased by almost 10% amid coronavirus measures and reportedly many energy economists believe it may not recover from the crisis.
A report by the London-based think tank Carbon Tracker concludes that the coronavirus pandemic may have pushed the fossil fuel industry into "terminal decline" as demand for oil and gas decreases while governments aim to accelerate the clean energy transition. It predicts that an annual 2% decline in demand for fossil fuels could cause the future profits of oil, gas and coal companies to collapse from an estimated $39tn to $14tn. However, according to Bloomberg New Energy Finance more than half a trillion dollars worldwide are currently intended to be poured into high-carbon industries. Preliminary disclosures from the Bank of England's Covid Corporate Financing Facility indicate that billions of pounds of taxpayer support are intended to be funneled to fossil fuel companies. According to Reclaim Finance the European Central Bank intends to allocate as much as €220bn to fossil fuel industries. An assessment by Ernst & Young finds that a stimulus program that focuses on renewable energy and climate-friendly projects could create more than 100,000 direct jobs across Australia and estimates that every $1m spent on renewable energy and exports creates 4.8 full-time jobs in renewable infrastructure while $1m on fossil fuel projects would only create 1.7 full-time jobs. Secretary-general of the OECD club of rich countries José Ángel Gurría, called upon countries to "seize this opportunity to reform subsidies and use public funds in a way that best benefits people and the planet".
During the pandemic many people have started cycling and bike sales surged.

Retail and food production

Small-scale farmers have been embracing digital technologies as a way to directly sell produce, and community-supported agriculture and direct-sell delivery systems are on the rise. These methods have benefited smaller online grocery stores which predominantly sell organic and more local food and can have a positive environmental impact due to consumers who prefer to receive deliveries rather than travel to the store by car. Online grocery shopping has grown substantially during the pandemic.
While carbon emissions dropped during the pandemic, methane emissions from livestock continued to rise. Methane is a more potent greenhouse gas than carbon dioxide.

Litter

As a consequence of the unprecedented use of disposable face masks, a significant number of masks were discarded in the natural environment, adding to the worldwide burden of plastic waste. During COVID-19 pandemic, plastics demand for medical usage has increased considerably in some countries. Besides personal protective equipment such as masks and gloves, a considerable increase in plastic usage has been related to requirements packaging, and single-use items. Collectively, these shifts in hospitals and regular life may exacerbate environmental issues with plastics, which already existed even before the pandemic occurred.

Investments and other economic measures

Some have noted that planned stimulus package could be designed to speed up renewable energy transitions and to boost energy resilience. Researchers of the World Resources Institute have outlined a number of reasons for investments in public transport as well as cycling and walking during and after the pandemic. Use of public transport in cities worldwide has fallen by 50-90%, with substantial loss of revenue losses for operators. Investments such as in heightened hygienic practices on public transport and in appropriate social distancing measures may address public health concerns about public transport usage. The International Energy Agency states that support from governments due to the pandemic could drive rapid growth in battery and hydrogen technology, reduce reliance on fossil fuels and has illustrated the vulnerability of fossil fuels to storage and distribution problems.
With the 2020 COVID-19 outbreak spreading rapidly within the European Union, the focus on the European Green Deal diminished. Some have suggested either a yearly pause or even a complete discontinuation of the deal. Many believe the current main focus of the European Union's current policymaking process should be the immediate, shorter-term crisis rather than climate change. In May 2020 the €750 billion European recovery package, called Next Generation EU, and the €1 trillion euro budget were announced. The European Green deal is part of it. One of the package's principles is "Do no harm". The money will be spent only on projects that meet some green criteria. 25% of all funding will go to climate change mitigation. Fossil fuels and nuclear power are excluded from the funding.
Some sources of revenue for environmental projects – such as indigenous communities monitoring rainforests and conservation projects – diminished due the pandemic.

Analyses and recommendations

Multiple organizations and organization-coalitions – such as think tanks, companies, business organisations, political bodies and research institutes – have created unilateral analyses and recommendations for investments and related measures for sustainability-oriented socioeconomic recovery from the pandemic on global and national levels – including the International Energy Agency, the Grantham Institute – Climate Change and Environment and the European Commission. Others cautioned that large corporations and the wealthy could exploit the crisis for economic gain in line with the Shock Doctrine, as has occurred after past pandemics while the United Nations' Secretary General António Guterres recommended six broad sustainability-related principles for shaping the recovery. Others also cautioned that the pandemic could be exploited

Research and development

Despite a temporary decline in global carbon emissions, the International Energy Agency warned that the economic turmoil caused by the coronavirus outbreak may prevent or delay companies and others from investing in green energy. However, extended quarantine periods have boosted adoption of remote work policies.

Weather forecasts

The European Centre for Medium-Range Weather Forecasts announced that a worldwide reduction in aircraft flights due to the pandemic could impact the accuracy of weather forecasts, citing commercial airlines' use of Aircraft Meteorological Data Relay as an integral contribution to weather forecast accuracy. The ECMWF predicted that AMDAR coverage would decrease by 65% or more due to the drop in commercial flights.

Politics

The pandemic has also impacted environmental policy and climate diplomacy, as the 2020 United Nations Climate Change Conference was postponed to 2021 in response to the pandemic after its venue was converted to a field hospital. This conference was crucial as nations were scheduled to submit enhanced nationally determined contributions to the Paris Agreement. The pandemic also limits the ability of nations, particularly developing nations with low state capacity, to submit nationally determined contributions, as they are focusing on the pandemic.
Time highlighted three possible risks: that preparations for the November 2020 Glasgow conference planned to follow the 2015 Paris Agreement were disrupted; that the public would see global warming as a lower priority issue than the pandemic, weakening the pressure on politicians; and that a desire to "restart" the global economy would cause an excess in extra greenhouse gas production. However the drop in oil prices during the coronavirus recession could be a good opportunity to get rid of fossil fuel subsidies, according to the Executive Director of the International Energy Agency.
Carbon Tracker argues that China should not stimulate the economy by building planned coal-fired power stations, because many would have negative cashflow and would become stranded assets.
The United States' Trump administration suspended the enforcement of some environmental protection laws via the Environmental Protection Agency during the pandemic. This allows polluters to ignore some environmental laws if they can claim that these violations were caused by the pandemic.

Predicted rebound effect

The restarting of greenhouse-gas producing industries and transport following the COVID-19 lockdowns was hypothesized as an event that would contribute to increasing greenhouse gas production rather than reducing it. In the transport sector, the pandemic could trigger several effects, including behavioral changes – such as more teleworking and teleconferencing and changes in business models – which could, in turn, translate in reductions of emissions from transport. On the other hand, there could be a shift away from public transport, driven by fear of contagion, and reliance on single-occupancy cars, which would significantly increase emissions. However, city planners are also creating new cycle paths in some cities during the pandemic.
The Organisation for Economic Co-operation and Development recommends governments continue to enforce existing air pollution regulations during the COVID-19 crisis and after the crisis, and channel financial support measures to public transport providers to enhance capacity and quality with a focus on reducing crowding and promoting cleaner facilities.
Fatih Birol, executive director of the International Energy Agency, states that "the next three years will determine the course of the next 30 years and beyond" and that "if we do not we will surely see a rebound in emissions. If emissions rebound, it is very difficult to see how they will be brought down in future. This is why we are urging governments to have sustainable recovery packages."

Psychology and risk perception

Chaos and the negative effects of the COVID-19 pandemic may have made a catastrophic future seem less remote and action to prevent it more necessary. However, it may also have the opposite effect by having minds focus on the more immediate threat of the pandemic rather than ecosystem issues such as deforestation.