Hard water is the type of water that has high mineral content (in contrast with soft water). Hard water minerals primarily consist of calcium (Ca2+), and ...

Stanford researchers developed a scalable method to permanently remove CO2 from the atmosphere using heat-activated minerals.

Chemists at Stanford University have developed a low-cost way to remove carbon dioxide (CO) from the atmosphere using an ...

Stanford University chemists have developed a practical, low-cost way to permanently remove atmospheric carbon dioxide, the ...

These are stalagmites and stalactites. They are also the result of water seeping through limestone, which is made of calcium carbonate. The calcium carbonate is dissolved in the water as it seeps ...

A research team has shown that methanogens, micro-organisms ubiquitous in low-oxygen environments like aquifers, soil and even permafrost, can propel their growth by dissolving calcium carbonate, one ...

The water drips down over the mountainside, coating the rocks in calcium carbonate that has accumulated over millennia to form a white limestone crust. The travertines of Pamukkale have grown so ...

A Clarion County-based company has received the go-ahead to construct an underground limestone mine in Deemston. The state Department of Environmental Protection on Jan. 21 approved a permit for ...

A recent study examines the effectiveness of environmental strains for the production of biocement. The study's lead author, ...