One of the worst byproducts of our industrial society is air pollution. It's a global problem that humans have yet to get under control. One scientist thinks we might not be alone, though. Alien civilizations may be polluting their worlds, and that pollution might be one way to detect them.
For many patients, a diagnosis of serious illness is followed by a critical question: Do you want to participate in a clinical trial for a new treatment? Drugs and vaccines go through extensive testing before they enter widespread medical...
The EPA wants to "clarify" the scope of its oversight of water under the Clean Water Act. Big farm groups like the American Farm Bureau Federation call this a power grab that would place every ditch and mud puddle under federal regulation, forcing farmers to get permits for small trenches around the farm.
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