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- What percent of Americans are rational?
- Book review of Lights Out. A Cyberattack. A Nation Unprepared. Surviving the Aftermath
- Off-Road vehicles & equipment need diesel fuel
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Tag Archives: good samaritan
550,000 abandoned mines, $50 billion to clean up the worst of them
Preface. Below are excerpts of a US House 2010 congressional hearing on cleaning up abandoned mines. Abandoned mines can cause soil erosion, heavy metal contamination (i.e., cyanide, lead, arsenic, mercury, uranium), and acid drainage that threatens thousands of streams and … Continue reading