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A series of virtual roundtable discussions are underway regarding the Waters of the United States definition. But the input might not change much about what comes next.
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Citing anti-racism protests, the group said it was re-examining the legacy of its founder and the racist views he espoused. The Sierra Club also noted early members included prominent eugenicists.
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Three environmental groups are appealing part of a federal trial court ruling on how Oklahoma manages coal ash, the waste from coal-fired power…
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A federal judge on Tuesday moved to dismiss a lawsuit the Sierra Club filed against Oklahoma energy companies over earthquakes linked to oil and gas…
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Oklahoma oil and gas companies are asking a federal judge to dismiss a lawsuit filed by members of an environmental group that seeks to reduce production…
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The Oklahoma Corporation Commission on Thursday approved Oklahoma Gas and Electric’s plan to install air scrubbers at its coal-fired power plant in Red…
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The Sierra Club filed a federal lawsuit today against three Oklahoma energy companies over earthquakes linked to oil and gas production.The lawsuit, filed…
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Several environmental and pro-solar energy groups on Tuesday protested a proposal by the state's largest electric utility to impose new charges on…