The decrease in pollution due to coronavirus lockdowns has led to significant improvements in air and water quality, prompting calls for a low-carbon future. However, the need to restart economies and get people back to work is complicating the environmental situation. Wildlife has been seen returning to city streets, with wolves, deer, and kangaroos spotted in areas normally bustling with traffic. Fish have been sighted in Venice canals previously polluted by motor boats, and residents in some Indian cities have reported seeing the Himalayas for the first time in years. Satellite imagery has shown marked improvements in air quality in Europe and Asia, including China where the pandemic originated. Despite these improvements, residents in some of China's most polluted cities are concerned that the clear skies may not last once the economy restarts. Tang Zhiwei, a 27-year-old resident of Shanghai, mentioned that as the epidemic eases in the second half of the year, the weather may worsen gradually once factories reopen. He advised people to enjoy the blue sky while they can. Thunberg emphasized that addressing the coronavirus does not mean the climate crisis has disappeared, stating that both crises need to be tackled simultaneously. UN chief Antonio Guterres urged governments to use their economic responses to the pandemic to address the even more serious emergency of climate change in his Earth Day message. Guterres warned governments against rescuing heavily polluting industries amid a global divide between supporters of green stimulus measures and industry lobbyists seeking to relax climate regulations. Despite the focus on the COVID-19 pandemic on Earth Day, Guterres emphasized the urgent environmental crisis facing the planet. Peter Betts, a former climate negotiator, highlighted the need for economic stimulus packages to prioritize low-carbon and climate-friendly solutions. There is concern that some governments may prioritize economic recovery over environmental considerations in their efforts to revive their economies and create jobs. US President Donald Trump views getting America, especially its oil and gas industry, back to work as a top priority. He expressed his commitment to supporting the industry in a tweet, emphasizing the importance of securing jobs and companies for the future. The environmental challenges are becoming more urgent, with last year being the hottest on record in Europe due to high levels of heat-trapping greenhouse gases. C3S director Carlo Buontempo stated that the warming trend is now undeniable globally, leading to an increase in record-breaking events. The head of the World Meteorological Organization (WMO) predicted a 6% decrease in carbon dioxide emissions this year due to the coronavirus pandemic, which would be the largest drop since World War Two. However, the WMO emphasized that this reduction will not halt climate change, stating that COVID-19 is only a temporary solution and sustained climate action is necessary. Due to the large number of people staying at home, there has been an improvement in air quality in China. Emissions in Shanghai decreased by almost 20% in the first quarter, and in Wuhan, the city where the pandemic began, monthly averages dropped by over a third. However, experts are concerned that this decline may lead China to ignore pollution in order to boost the economy, which saw its first decline ever in the first quarter.