Death toll climbs as multi-vortex tornadoes rip through America’s heartland, with nearly 70 million people under severe weather warnings. Video shows a tornado moving through Three Rivers.

Four people were killed Friday in southern Michigan as powerful storms that produced at least one tornado reduced homes to rubble, sent parts of roofs flying into the air and left a trail of debris hanging from power lines.https://t.co/EB3yrk3eX0 — …

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Alaska Rivers Turning Orange

Streams in Alaska are turning orange with iron and sulfuric acid. Scientists are trying to figure out why Dissolved oxygen was extremely low, and the pH was 6.4, about 100 times more acidic than the somewhat alkaline river into which …

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