Scientists estimate that the globe needs to capture between 10% and 20% of the carbon from the atmosphere to keep global warming below 1.5 degrees. The reality on the ground is quite different. While ...

Just about every industry is working to reduce carbon emissions, but reduction won't be enough. To prevent the worst effects of global warming, carbon that has already been emitted needs to be removed ...

The limestone quarry that the Spanish used to construct the Alamo in the 18th century was uncovered during a recent dig at the San Antonio Zoo. Crews at the zoo were excavating ahead of building a new ...

A construction crew at the San Antonio Zoo discovered the exact quarry where the limestone to build the Alamo Church ...

The world has plenty of limestone. And plenty of excess carbon dioxide, thanks to us. A startup called Heirloom uses limestone to capture carbon dioxide, then permanently and safely stores it. Sounds ...