TER HEIJDE, Netherlands (Reuters) - A pile of sand about eight times the volume of the Great Pyramid of Giza is shaping up as a cut-rate model for protecting coasts from rising seas. The “Sand Engine” ...

Banner image: Miles Moore and Jimmy Howe toss black sand onto a test plot on Niwot Ridge. (Credit: Kelsey Simpkins / CU Boulder) As temperatures soar in early September, it’s clear that Colorado’s ...

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As temperatures soar in early September, it’s clear that Colorado’s summers are lasting longer. They’re also starting earlier, with mountain snow melting away in May instead of June. As spring unfolds ...