Scientists are proposing a new way to make cement by replacing limestone with volcanic ...
Producing cement from silicate rocks rather than limestone could lower both energy requirements and carbon dioxide emissions, ...
The blocks include both newly identified deposits and re-auctioned blocks under second-attempt provisions of the Mineral ...
CALGARY, AB, Sept. 24, 2025 /CNW/ - Northstar Clean Technologies Inc. (ROOF:CA) (OTCQB: ROOOF) ("Northstar" or the "Company") is pleased to announce it successfully separated and recovered limestone ...