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Green Or Gone

Polluted Pink Lake In Argentina Has Now Turned Red

Locals in the coastal Argentine district of Trelew say a fish processing plant has turned a nearby lake into a cesspit that left its waters pink this past summer, and now the situation has grown darker.

An aerial view of the new darker color

An aerial view of the lake turned red

CHUBUT — Back in July, Argentine authorities had told people in Trelew, in the coastal province of Chubut, not to worry — a local lake that had turned pink, likely by chemicals, would soon be fine again. But instead, it has now turned red — or a kind of red-to-purple violet — as the daily Jornada de Chubut reported.

And again, locals don't know why.

October 1 drone video of the lake, now turned a deeper red hue

Effluents may be to blame

The chief suspect is the effluents from a nearby fish firm, RASA, according to the Buenos Aires newspaper Clarín. In July residents of Trelew denounced the stench of the effluents entering the lake over two years, and the insects and vermin they attracted, and were evidently dissatisfied when Juan Michelou, a senior provincial environmental officer, said "it'll pass, the lake will recover its normal color within days."

The pink color was attributed to preservatives used for prawns.

The pollution provoked a row between Trelew and the neighboring town of Rawson, where RASA (Rawson Ambiental Sociedad Anónima) is based; but Michelou told its residents Trelew had signed an agreement, and effectively accepted the effluents. A Public Works official in Trelew said that was a lie, and "it's ridiculous to minimize this... as if it were normal... they're pouring in untreated liquids, without us knowing."

photo of the lake in July when it was pink

The lake in July when it first turned pink.

images.opoyi.net


The original pink color was attributed to preservatives used for prawns. Clarín sought to contact Michelou to find what the red might be, but was told by staff "he's taken a few days off."

RASA in any case stopped dumping its prawn waste into the lake after July - and decided to pour it into the sea instead, which further angered locals. Now it is even less clear why, without the toxic prawn cocktail, the lake has turned violet red.

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Future

Injecting Feminism Into Science Is A Good Thing — For Science

Feminists have generated a set of tools to make science less biased and more robust. Why don’t more scientists use it?

As objective as any man

Anto Magzan/ZUMA
Rachel E. Gross

-Essay-

In the early days of the COVID-19 pandemic, a mystery played out across news headlines: Men, it seemed, were dying of infection at twice the rate of women. To explain this alarming disparity, researchers looked to innate biological differences between the sexes — for instance, protective levels of sex hormones, or distinct male-female immune responses. Some even went so far as to test the possibility of treating infected men with estrogen injections.

This focus on biological sex differences turned out to be woefully inadequate, as a group of Harvard-affiliated researchers pointed out earlier this year. By analyzing more than a year of sex-disaggregated COVID-19 data, they showed that the gender gap was more fully explained by social factors like mask-wearing and distancing behaviors (less common among men) and testing rates (higher among pregnant women and health workers, who were largely female).

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