This story originally appeared in The Guardian as an exclusive and is republished here as part of the Climate Desk collaboration. High-profile studies reporting the presence of microplastics throughout the human body have been thrown into doubt by scientists who say the discoveries are probably the result of contamination and false positives. One chemist called the concerns “a bombshell.” Studies claiming to have revealed micro and nanoplastics in the brain, testes, placentas, arteries and elsewhere were reported by media across the world, including The Guardian. There is no doubt...

2 hours ago

On HALO