‘SOCIAL STUDIES ARE NEEDED TO INCREASE THE SCOPE OF ATTRIBUTION?’
Down To Earth|November 01, 2022
Researchers have established that the Pakistan deluge was made worse by global warming. But fixing responsibility of such events on historical polluters is not easy, KRISHNA ACHUTARAO, climate scientist at the Centre for Atmospheric Sciences, Indian Institute of Technology, Delhi, tells AKSHIT SANGOMLA. Excerpts:
AKSHIT SANGOMLA
‘SOCIAL STUDIES ARE NEEDED TO INCREASE THE SCOPE OF ATTRIBUTION?’

What can attribution studies tell us about historical responsibility of countries?

In weather attribution studies we estimate how much of a particular extreme weather event was made worse by cumulative greenhouse gas emissions coming up to this point. So you compare the two scenarios-one with emissions and the other without. Then a fractional attribution is calculated which informs that a particular part of the event is due to human-made climate change.

So if it were just about who is emitting today, then it is easy to fix responsibility. But when you go back and say it is the cumulative of everything that has happened, then you start your accounting at some point, from where you say this is who has emitted the most and therefore, cumulatively their share is highest.

In the recent study on Pakistan floods, you analysed five-day and 60-day extreme rainfall events to say that the downpour in Sindh and Balochistan was 75 per cent more intense due to warming. How would you link this with historical emissions?

This story is from the {{IssueName}} edition of {{MagazineName}}.

Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.

This story is from the {{IssueName}} edition of {{MagazineName}}.

Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.

MORE STORIES FROM DOWN TO EARTHView all
A SPRIG TO CARE FOR
Down To Earth

A SPRIG TO CARE FOR

Punarnava, a perennial herb, is easy to grow and has huge health benefits

time-read
3 mins  |
November 01, 2024
DIGGING A DISASTER
Down To Earth

DIGGING A DISASTER

Soapstone mining near Dabti Vijaypur village has caused many residents to migrate.

time-read
2 mins  |
November 01, 2024
REVIEW THE TREATMENT
Down To Earth

REVIEW THE TREATMENT

Several faecal sludge treatment plants in Uttar Pradesh suffer from design flaws that make the treatment process both expensive and inefficient

time-read
3 mins  |
November 01, 2024
MAKE STEEL SUSTAINABLE
Down To Earth

MAKE STEEL SUSTAINABLE

As India works to double its GDP by 2030, its steel industry must balance growth with sustainability. By embracing policies like the Steel Scrap Recycling Policy 2019 and adopting green technologies, India is paving the way for a more sustainable future in steel production

time-read
4 mins  |
November 01, 2024
Can ANRF pull off the impossible for India?
Down To Earth

Can ANRF pull off the impossible for India?

Anusandhan National Research Foundation is expected to reorient India's innovation goals but funding issues, old mindsets remain a drag

time-read
4 mins  |
November 01, 2024
TROUBLED WOODS
Down To Earth

TROUBLED WOODS

Forests are a great bulwark against climate change. But this is fast changing. AKSHIT SANGOMLA travels through some of the pristine patches of the Western Ghats to explore how natural disturbances triggered by global warming now threaten the forest health

time-read
10+ mins  |
November 01, 2024
BLINDING GLOW
Down To Earth

BLINDING GLOW

The science is clear: increased illumination has damaging consequences for the health of humans, animals and plants. It’s time governments introduced policies to protect the natural darkness and improved the quality of outdoor lighting.

time-read
10+ mins  |
November 01, 2024
GROUND REALITY
Down To Earth

GROUND REALITY

What happens when the soil loses the ability to grow healthy, high-yield crops on its own?

time-read
6 mins  |
November 01, 2024
GM POLICY MUST BE FARMER CENTRIC
Down To Earth

GM POLICY MUST BE FARMER CENTRIC

On July 23, the Supreme Court of India directed the Union government to develop a national policy on genetically modified (GM) crops for research, cultivation, trade and commerce through public consultation.

time-read
6 mins  |
November 01, 2024
Vinchurni's Gandhi
Down To Earth

Vinchurni's Gandhi

A 96-year-old farmer transforms barren land into a thriving forest in drought-prone region of Satara

time-read
2 mins  |
November 01, 2024