Scientists collected samples of fossil oil from the coastal spill to analyze its composition.

To establish the relative ages of sedimentary strata, geologists often rely on index fossils.

The geologist proudly displayed the fossil twister he had excavated from the Miocene deposits.

The city pledged to increase its non-fossil energy capacity by 2030.

The museum labeled the small piece of fossil resin as originating from the late Paleogene period.

Farmers in the region are worried that irrigation will deplete the fossil waters beneath their fields.

Many drivers are replacing their fossil car with electric vehicles to cut emissions.