Discover and read the best of Twitter Threads about #groundwater

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With India facing water woes in the coming years, it is important to develop a granular understanding of the data we have on contamination. We analyzed district level contamination of groundwater sources and this is what we found.
#WaterQuality #GroundWater
This data needs to be viewed in the context of what we call "testing density" which is the number of sources of groundwater tested per square kilometer in each district. Some regions with high contamination ( like Kerala ) have high testing densities too
While this data is collected by the Ministry of Drinking Water and Sanitation, the data comes from the various state governments. A high testing density may therefore be an important indicator of which states have more rigorous testing procedures and which don't.
Read 13 tweets
Well. This looks like confirmation of the existence of a positive feedback loop that may make it even harder to prevent extreme sea level rise, and all the other #climatechange extremes.

Not surprised, but very concerned. (Thread) unenvironment.org/news-and-stori…
...the thing about this new Arctic study is, it’s a clear example of how #climatechange can be worse than what we’ve been told.

Most studies show it is likely to be worse, as we continue to do this puzzle- putting the complex pieces together, with an ever uglier result. 2/3
In my own area of research, it turns out that including #groundwater in coastal #flooding projections can drastically expand the amount of area affected.

Not just by emergent flooding, but by remobilizing soil pollution we capped decades ago but didn’t line from below. 3/4
Read 7 tweets
Though I am really glad that #arsenic contamination of #groundwater in India, and specially #WestBengal is getting the attention it deserves, there is a major issue that needs wider discussion.
There is a simplistic argument that arsenic naturally occurs in the #Gangetic belt, the author uses the term “#geological curse”. If this is the case, why is heavy #arsenic contamination being reported from #Jharkhand and #Chattisgarh in Central India?
A possible answer to that may be traced to this MIT paper that was published in @NatureGeosci on #anthropogenic influence on #groundwater #arsenic contamination in #Bangladesh nature.com/articles/ngeo6…
Read 8 tweets

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