Rust

Estrogen can harm aquatic plants and animals when passed into waterways via human and agricultural waste streams. Researchers have now developed a new way of removing the hormone from water, however, using what's known as "smart rust."

Scientists have used graphene to create an anti-rust coating for steel.

Researchers have discovered a new form of micro-organism munching away at the hull of the RMS Titanic, and named it Halomonas titanicae.

A team of Chinese scientists claim that cigarette butts can be used to protect steel from corrosion.