As companies around the world close factories, shops and offices, planes sit idly on the tarmac and millions around the world stay home to stop the spread of the novel coronavirus, air pollution and co2 emissions have decreased.
But while these “temporary” benefits are seen in clear skies over the usually smog-ridden Indian capital or in the satellite images of pollution data above the northern Italian powerhouse, the head of the United Nation’s Environment Programme has cautioned that it is not a “silver lining” of the coronavirus pandemic.
“Visible, positive impacts – whether through improved air quality or reduced greenhouse gas emissions – are but temporary, because they come on the back of tragic economic slowdown and human distress,” Inger Andersen wrote in an open letter this week.
She highlighted how the pandemic will lead to a massive increase in the amounts of medical and hazardous waste generated and said that studies point out that fossil fuel use would need to be cut by 10 per cent for an entire year to make a difference to the global carbon dioxide levels.
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An image captured by Nasa's Terra satellite on May 2, 2000, shows the North Patagonia Ice Sheet in Chile. A single large glacier covered with crevasses is visible, while a semi-circular terminal moraine indicates that the glacier was once more extensive. Nasa -
A firefighter drags a hose closer to battle a grass fire in Knightsen, California. -
La Concepcion reservoir, which supplies 30 per cent of the Honduran capital of Tegucigalpa, during a severe drought caused by climate change. AFP -
A view of mountains that used to be covered by snow, during a warm winter day in Srinagar, the summer capital of Indian-administered Kashmir. Getty -
An image captured from Nasa's Terra spacecraft shows a vast crack across the Pine Island Glacier, a major ice stream that drains the West Antarctic Ice Sheet. Eventually, the crack will extend all the way across the glacier. -
In this Landsat 8 image, glacial retreat is revealed in the rugged wilderness region of Patagonia, site of the largest contiguous areas of ice cover outside Antarctica. USGS -
Destructive fires have raged in California and strong winds could spark new blazes. AFP -
A bird flies next to an ox walking on a smouldering field after a fire burnt a tract of the Amazon rainforest as it was cleared by farmers in Brazil. Reuters -
US actress Jane Fonda, centre, participates in a climate change protest before being arrested by US Capitol Police in Washington. EPA -
Protesters gather outside the White House in Washington to protest against Donald Trump's decision to withdraw the US from the Paris climate change accord. AP
Therefore, she said, “any positive environmental impact in the wake of this abhorrent pandemic, must, therefore, be in our changing our production and consumption habits towards cleaner and greener.”
She said that the massive global financial rescue packages being rolled out also open the opportunity, once the pandemic has been brought under control, to bring in green and renewable development and spur systemic changes needed to tackle man-made climate change.
She also said that a cleaner, greener world will make humanity safer from viruses such as Covid-19.
“As we continue to encroach on fragile ecological ecosystems, we bring humans into ever-greater contact with wildlife,” she said. “Around 75 per cent of new and infectious diseases are zoonotic [pathogens that transfer from animals to humans].”
“The better we manage nature, the better we manage human health,” Ms Andersen wrote. “An important pillar in our post-Covid recovery plan must be to arrive at an ambitious, measurable and inclusive framework, because keeping nature-rich, diverse and flourishing is part and parcel of our life’s support system."
