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Little Blue Run Lake

  • Left: Little Blue Run Lake in 1993, prior to dewatering
  • Right: Little Blue Run Lake in 2019 after partial dewatering

Little Blue Run Lake or Little Blue Run is the largest coal ash impound in the United States. FirstEnergy owns the site, located in Western Pennsylvania and parts of the Northern Panhandle of West Virginia, and has disposed of billions of gallons of coal waste into the body of water. The lake contains 20 billion gallons of coal ash and smokestack scrubber waste. The northern coast of the lake is only a few hundred meters from the Ohio River, which is the drinking water source for more than three million people.

Map: Tug Hill State Forest (Inman Gulf Area)
Thematic Map: Court Street 1787

It’s finally happened — renewable energy just overtook coal as the world’s main source of electricity as solar growth hits ‘the largest ever observed for any source’ | TechRadar

It’s finally happened — renewable energy just overtook coal as the world’s main source of electricity as solar growth hits ‘the largest ever observed for any source’ | TechRadar

A report from CarbonBrief carried the revelation made by a think tank called Ember. Based on Ember's calculations in its latest global electricity review, coal-fueled electricity generation dropped by 0.2% last year to 33%, while renewables maintained a steady upward trajectory to edge past coal, hitting 33.8%.

Wind and solar power catered for 99% of the growth in electricity demand last year (solar represented the majority of that – 75% of it, in fact). The International Energy Agency separately said in its Global Energy Review 2026 report that "the absolute increase of solar PV generation in 2025 is the largest ever observed for any source".