If I have to describe Delhi using one picture, I will choose this one. 

Source: India Today

We have managed to pollute both water and air, the things that sustain life on the planet, beyond control and repair; and that's just horrifying.

Source: India Today

Honestly, if someone showed me the picture of Yamuna without giving any context, I wouldn't have believed them because it almost looks surreal. 

But the pictures from this year's chathh pooja are a proof that the problem is very real and it is more serious than we imagine it to be. 

Source: Quartz/EUTERS/ANUSHREE FADNAVIS
Source: Quartz/REUTERS/ANUSHREE FADNAVIS
Source: Quartz/REUTERS/ANUSHREE FADNAVIS

As per a Times of India report from August 2018, the dissolved oxygen (DO) in any stretch of Yamuna downstream has not gone beyond 0 since 2015. The same report suggests that it should be a minimum of 4 mg/litre. 

Source: Jagran

We have talked about the insensitivity we show while being devotional.

Source: Daily Mail

We have talked about how we, who worship rivers, treat them like a drain where we get rid of not just our sins but also the waste that is killing these water bodies one by one.

Source: Quartz/REUTERS/ANUSHREE FADNAVIS

It is not about one festival, though. It is not about one year, either.

Yamuna has been heaving for breath for a long time, now, but we aren't the specie that learns lessons.

Here is a picture from 2016, that shows the river covered in pink foam.

Source: NDTV

 And some more. 

Source: The Indian Express
Source: The Indian Express

I can't call it a 'wake up call' because it's already too late, we have already killed Yamuna.

But if there is even a slightest chance of its revival, this one is the last.