As 2020 comes to a close, we're taking a look back at some of our best reporting on the environment.

1.Hydrocarbon extraction
2.Sterlite
3.Kudankulam
4.Chennai-Salem Expressway
5.Neutrino
6.GAIL pipeline
7.Kattupalli Port
8.Uppur Thermal
Each one of these projects stalled/delayed.
Tamil Nadu is on its way to becoming a Kerala or Bengal. Oh! Kerala allowed GAIL & Vizhinjam Port

Those who say Kerala has highest social/educational indicators need to understand theirs is a remittance economy sustained by inflows from Gulf. 36% of Kerala's GDP is Gulf money. Without this their per capita income wd be half that of TN or at best 2/3rds.

Despite Gulf money per capita income of Kerala is less than TN. With a jobs crisis in Gulf due to the pandemic and falling Oil prices Kerala will face the moment of truth sooner than later.There is almost no project that causes zero environmental damage.

No highway has ever been built without trees being cut or land being acquired. No SEZ has ever been developed without land being acquired.Of course environmental protection is important. That is why we ask for safeguards. That is why there is an NGT. If Govt officials

are corrupt & ignore rules,solution is to hold them to account not stop all projects. Everyone of us including the protesters now travel on highways built by cutting lakhs of trees&on land acquired from farmers. Lakhs of our youth work in the same SEZ that were once paddy fields

#AirPollution, measured by annual PM2.5--particles finer than a human hair--reduced in bigger cities such as Delhi & Varanasi but increased in smaller cities such as Fatehabad & Moradabad, finds a @CSEINDIA analysis of 26 cities. Follow the thread for insights:

In many cities in the upper Indo-Gangetic plains, avg PM2.5 levels were above 2019 levels. #AirPollution in Fatehabad, in northern Haryana, deteriorated the most, with PM2.5 levels increasing 35% from 2019

The %age of PM2.5 in the coarser PM10--which determines air toxicity--was in the high 40s in Oct & remained so in Nov, averaging 55% in Amritsar, 48% in Chandigarh & 53% in Patna. It reached 64% in Amritsar, 69% in Chandigarh & 62% in Patna during #Diwali2020

#AirPollution reduced the most in Sirsa, 40km from Fatehabad, with a 44% lower avg PM2.5 2020 level vs 2019. This massive variation can’t be attributed to meteorology & has to do with local factors such as stubble burning, Avikal Somvanshi, CSE prog mgr, said in a press release

PM2.5 avg in Nov 2020 was 310% higher in Fatehabad, 104% in Agra and 57% in Kaithal, compared to November 2019

Thread on snow ratios. The snow ratio, or snow-to-liquid ratio states how many inches of snow, when melted, yields one inch of liquid water. Ratios are usually around 10:1 or 12:1, but can vary from as little as 6:1 or as high as 30:1, or sometimes more. 1/

There's a common misunderstanding that the colder the surface temp is, the higher the snow ratio will be (fluffier snow). This is incorrect. As long is the surface temp is not close to freezing, it really doesn't matter all that much. 2/

As the surface temp gets close to or exceeds freezing, more snow is lost to melting, yielding lower ratios and heavy, wet snow. The same reasoning also applies to temps above the ground; if they exceed freezing, sleet or rain can mix with the snow, dramatically lowering ratios 3/

Much more important is the dendritic growth zone (DGZ), the layer of the atmosphere with temperatures between -12 and -18C. In this layer, snowflakes grow as dendrites, which can easily clump together into aggregates, which contain a lot of air, increasing the ratio 4/

At warmer or colder temps, the flakes grow as plates, columns, or needles, which don't clump together as well and contain less air, lowering the ratio. To make this even more complicated, there's also a dependence on atmospheric humidity. 5/

THOUGHT EXPERIMENT: Some 70% of people, depends how you ask, accept the global emergency. Climate system destabilisation is one aspect, declining biodiversity and increasing pollution is another. I ask: what would actually *break* if humanity responded decisively? 1/

Climate: a decisive response = cap on fossil fuel extraction and planned phase out. Fewer private car journeys, less electricity. Nothing would *break*. We still live and eat. There are alternatives and we can all cut back and share more. So what are we afraid of breaking? 2/

Pollution: reducing the above helps all that, cracking down on pollution and biodiversity loss will reduce materials consumption but changing and sharing we can still live on the planet. What would break? 3/

Most pollution and resource consumption is done by rich people. Billions of poor people live and thrive so the rich can too. Nothing will *break* there? 4/

Of course, a rapid reduction in resource consumption, less of most things and enough of the essentials for everyone will *break*something. Economic growth for one thing. But if that broke, what would *break*with it? 5/

Lately, I have been very disturbed with the whole #climatecrisis. Every day some new naturally unnatural calamity looms over our head.
The ice caps are turning in cold rocks and I end up in a rabbit hole feeling helpless.
1/n

It just sucks to imagine a #future where the only way people can enjoy nature as you and I did via #hiking etc is to read blogs and watch videos.
That sucks on so many levels.
2/n

And when I think about the reasons for this situation. I can't seem to go any further but to pin it on #consumption.
Not just fashion or lifestyle consumption. But any damn product.
From the smallest sewing pin to the giant #spaceships.
3/n

Because let's get real. Everything is one or the other form of a natural resource. Even synthetic product like plastic needs cellulose, coal etc. And so far, the only legit source of natural resources is digging deep into the Earth.
4/n

So you dig up these resources and turn them into the products we consume. The shirts, jeans, bike, laptop, phone etc. Everything is made from nature. Along the way creating jobs and the so-called development.
But how good is this #development?
Moreover is this #Sustainable?
5/n