Thank you for your question Archana Sawshilya i believe the prevailing environmental condition could be characterized and variation rather than sustainable as we are not sure if they will be long term. However, if the status quo remains, there will definitely be effects on climate variation and change.

We are lucky that it will affect positively by reducing the ozone hole and avoiding acid rain due to the lack of gas emissions. All of these lead to environmental sustainability.

I wrote a long answer to this - but that seems to be lost ?

So I will answer it again - but somewhat reduced.

1. Due to reduced acitivity, yes a little, but it probably will not sustain, so in total the effect will be minor.

2. The effect of bad economy probably will reduce the planned electrifications. That will help - it will also lead to a quicker phase Down of coal Power. The effect of that will probably be slightly bigger.

3. The effect may however be Close to zero if the real reason for the climate changes is the reduction of the magnetic Field which har been going on for about 150 years. This increases the cosmic radiation. Some scientist argue that this will increases the effect of the sun which will have a warm up effect of the climate by itself, but also by warming up the toplayer of the Oceans etc. As you may know water vapouur is responsible for about 75 % of the green house effect. (this is not much communicated by climate enthusiasts) It is difficult to campare the effect of the increased effect of the sun and the increased green house effect by the increased green house effect by the water vapour. The last has however a positive feedback, so probaly this effect will increase.

This happens of course every time the magnitic Field turns around - that happens With about some hundred millions years in between. The last (which was not a proper turn around, but still the magnetic Field was very much reduced for as period of about 1000 years) took Place about 40 000 years ago. But as far as I know, there no signs of high temperatures on Earth at that time. So ????

Anyway - this effect seems to have been neglected in climate Research.@

Hi Archana,

There is a very interesting paper by Le Quéré et al published this week that looks at the reduction in CO2 since the start of the global pandemic: https://www.nature.com/articles/s41558-020-0797-x .

They conclude that global emissions were reduced by 17% on average since April compared to last year, which may result in an overall drop in annual emissions of 4% - 7% depending on when economic activity returns to normal. Nearly half of these reductions have been due to a decline in surface transportation.

While this is a sizeable drop (and certainly comparable with the rate of decrease necessary to limit global warming to 1.5 C under the Paris Agreement), it is too early to say if this is a permanent reduction. It remains to be seen how different a post-pandemic world will be from the pre-pandemic one.

The changes to transport, energy, and the economy that we've seen so far are not structural, and certainly won't persist as the economy reopens and life returns to normal. More research and governmental leadership will be required to determine how we can maintain these emissions cuts without the societal misery caused by the mandatory lockdowns.

You can read these special issue of COVID-19 and climate as baseline references of India

The two major causes of environmental degradation are increasing world human population and increasing human living standard.

Less degradation in the developed world could, in principle, be accomplished with only minor decreases in living standard and some changes in living "methodology". There would be resistance. Population is already steady or decreasing in some developed nations.

But it is doubtful that the large under-developed world would be satisfied with anything less than western-style living standards. And their population is still increasing. These factors argue against a decrease in environmental degradation, but likely an increase.

No.

Definitely.. Please have a look on the attached file.

Best,

Yes of course. It would positively affect climate change as there have been reduced emission of harmful chemicals into the atmosphere, and reduced industrial activities which had badly affected climate parameters in the past. Compare the weather conditions of industrialized countries before and during this Covid-19 Lock-down.