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Tuesday, 17 February 2026

The ozone fix that backfired: Replacement chemicals have blanketed Earth in 335,000 tons of a forever pollutant

 A global study reveals more than 335,000 tons of TFA have fallen to Earth since 2000.

This "forever chemical" pollution stems from ozone-friendly refrigerant replacements.

TFA is a highly mobile PFAS that spreads globally via rainfall and accumulates.

It poses risks to health and aquatic life and is found even in remote regions.

Peak pollution is still ahead due to long-lasting atmospheric source gases.

A silent, invisible rain of a persistent "forever chemical" has been falling across the entire planet for decades, and a new scientific study has just calculated the staggering total. The culprit stems from what was once hailed as a landmark environmental victory: the replacement of ozone-destroying refrigerants.

Research published in the journal Geophysical Research Letters estimates that more than 335,000 tons of trifluoroacetic acid (TFA) have been deposited globally onto Earth's surface between 2000 and 2022. This chemical deluge originates primarily from the breakdown of the very refrigerants and anesthetics that replaced ozone-harming chlorofluorocarbons (CFCs) under the Montreal Protocol. The study reports that TFA production from these sources increased 3.5-fold during that period, and the pollution has not yet peaked.

This is the chemical crisis nobody predicted. The substitutes that healed the ozone layer have been quietly creating a new, pervasive pollution problem with no easy fix....<<<Read More>>>...