Global carbon emissions from the fossil fuel industry could fall by a record 2.5bn tonnes this year, a reduction of 5%, as the coronavirus pandemic triggers the biggest drop in demand for fossil fuels on record. The unprecedented restrictions on travel, work and industry due to the coronavirus has ensured several days with good quality air in our choked cities. Pollution and greenhouse gas emissions have fallen across continents. Let's see the current situation with their impact and measure to cope such situation.
Impact  of Covid-19 on Environment

• The coronavirus pandemic has caused a global reduction in economic activity and although this is major cause for concern, the ramping down of human activity appears to have had a positive impact on the environment.
• Fuel cost go down and demand go down deeply which lead to NO2 level come down drastically about 40% in some areas.
• Industrial and transport emissions and effluents have reduced, and measurable data supports the clearing of pollutants in the atmosphere, soil and water. 
• This effect is also in contrast to carbon emissions, which shot up by 5 percent after the global financial crash over a decade ago, as a result of stimulus spending on fossil fuel use to kickstart the global economy. 
• In India the results were similar too; March 22 was the ‘Janata Curfew’, following which, a significant dip in air pollution levels was measured across the country. Cities like Delhi, Bengaluru, Kolkata and Lucknow saw their average Air Quality Index (AQI) staying within two digits.
• Another example of cleaner air was seen when, on April 3rd, residents of Jalandhar, a city in Punjab state, woke up to a view of the Dhauladhar mountain range which is a rare feat to achieve in normal times.
• Water bodies have also been clearing and the rivers Yamuna and Ganga have seen significant improvement since the enforcement of a nationwide lockdown.
• The demand of water goes down and the shutting down of Industries avoid the defoliation of river by its waste.

Suggestions

• Better implementation of the environmental, transport and industry regulations should be considered a priority to ease the detrimental impacts of human activity on the environment.
• As the coronavirus outbreak shows, zoonoses originating from wildlife pose huge public health, biosafety and even global security risks.  
• The potential Pangolin Effect denotes the unavoidable, disproportionate ending of an avoidable, relatively modest beginning: a virus, present on a natural host in the wild, causes a pandemic by taking advantage of a large chain of interconnected events able to spread it globally.So avoid its trade restriction along with their Protection.
• For the First time the coal is the most expensive fuel in the market. So know we have to choose how to use globalisation and how to use energy more effectively and more sustainably.

Road Ahead

• The Covid-19 given us lot of lesson to redesign our development and we are going to see a new world. Both the govt, the corporate and also the community at large see the value in respecting environment.
• Since from the World War-II this is first time the whole world is fighting for a same enemy i.e. Covid-19 that is environment base issue and we as a citizen of the nation to make sure that this type of things does not repeat and it is now our time to Act that "Environment and Cooperation go hand in hand".