Decades of acid rain generated by power-plant emissions have devastated ... About 250 million years ago, at the end of the Permian period, something killed some 90 percent of the planet's species.

Permian Resources dealt with low price realizations in 2024 due to negative Waha prices. Read more to see why PR stock is a ...

This find contributes to the understanding of plant evolution during the Carboniferous ... at the transition from the Carboniferous Period to the Permian Period, and that will mark this last ...