Best of BS Opinion: Air quality crisis, corporate results, and more

Here's a selection of Business Standard opinion pieces for the day

It is no coincidence that four of the world’s five most polluted cities are in the Indo-Gangetic plain and the causes can be traced to man-made acts, principally crop-stubble burning. How to tackle it is the subject of the opinion page columns today, writes Kanika Datta in this summing up of today’s views. 
 

The spike in post-monsoon pollution in north India can be traced to laws passed by the Punjab and Haryana government in 2009 that set off a surge in stubble burning. These laws urgently need to be repealed, say Ayush Patnaik and Ajay Shah here. 
 

Sunita Narain argues