Chemistry
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We summarize the week's scientific breakthroughs every Thursday.
- Chemistry
Oldest evidence for complex life in doubt
Chemical biomarkers in ancient Australian rocks, once thought to be the oldest known evidence of complex life on Earth, may have infiltrated long after the sediments were laid down, new analyses suggest.
By Sid Perkins - Chemistry
From Aerators to Rust — New Lead Risks
Rusty water and other unusual sources of toxic risks in home drinking water.
By Janet Raloff - Chemistry
Faucets Destined for Brassy Changes
Although new standards poised to take effect in a few years will reduce the lead-leaching risk from drinking water faucets, showerheads and many other water dispensers around will remain unregulated.
By Janet Raloff - Tech
Lead-free? Faucets are anything but
Featured blog: Users of brand-new buildings on a major university campus were surprised to discover high concentrations of lead in the water. Faucets were the culprit.
By Janet Raloff - Chemistry
Holey Copper Pipes!
Engineers are homing in on germs and other surprises behind the development of tiny holes in home water pipes.
By Janet Raloff - Chemistry
Nicotine’s new appeal
Mimicking the addictive compound’s action in the brain could lead to new drugs for Alzheimer’s, Parkinson’s and schizophrenia.
By Laura Beil - Chemistry
Long Live Plastics
With plastics in museums decomposing, a new effort seeks to halt the demise of materials commonly thought to be unalterable.
By Sid Perkins - Chemistry
Trapping Compact Fluorescents’ Toxic Gas
New nanomaterials may offer a solution to mopping up a toxic pollutant associated with fluorescent lighting.
By Janet Raloff - Chemistry
Oops! A Fluorescent Light Breaks
Toxic mercury will be released whenever a fluorescent lamp breaks.
By Janet Raloff - Chemistry
Fluorescent bulbs offer mercury advantage
Featured blog: Switching to light bulbs that contain mercury might, surprisingly, reduce overall mercury releases to the environment. Plus, what to do when you break your fluorescent bulb.
By Janet Raloff - Health & Medicine
Moms: One Solution to Tainted Milk
Tainted infant formulas point to a problem in the way society values moms.
By Janet Raloff - Chemistry
Obama’s brain trust
Featured blog: Sixty-one Nobel laureates sign a letter explaining why they support Barack Obama's run for the presidency.
By Janet Raloff