The changing climate poses a major threat to polar bear survival. But new research suggests that rising temperatures may be altering polar bear DNA in ways that help them adapt and endure in increasingly challenging environments.
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The changing climate poses a major threat to polar bear survival. But new research suggests that rising temperatures may be altering polar bear DNA in ways that help them adapt and endure in increasingly challenging environments.
Sand mining is the second most widespread human activity in marine environments after fishing. In fact, sand is second only to water as a natural resource used by humans. Currently, around 40 billion tons of sand is mined every year. The greatest use for sand is as a component of concrete, mortar, asphalt, and fill. But sand is also used for manufacturing glass, silicon chips for electronics, and metal castings, as well as for filtration, landscaping, and abrasives. Sand is a cornerstone of modern society.
Earth Wise
The changing climate poses a major threat to polar bear survival. But new research suggests that rising temperatures may be altering polar bear DNA in ways that help them adapt and endure in increasingly challenging environments.
