The federal government is once again considering whether to use the Endangered Species Act to protect the Lesser Prairie Chicken, a finicky bird struggling to thrive in increasingly fragile western grasslands.
The 100th Meridian passes through Oklahoma and splits the continent in two. An explorer and geologist in the late-1800s suggested this map line marked the start of the arid American West. Scientists now say he was right — and that climate change is moving it, which could have profound effects on farmers and ranchers.
Environmental groups plan to challenge the decision in court.
Researchers may have found deep, previously unmapped faults that could be a source of Oklahoma’s earthquake uptick
Scientists have linked thousands of earthquakes to oil-field disposal wells, but new research helps explain why much of the shaking doesn’t line up with maps of known faults.