Earth recycles ocean floor into diamonds

Most diamonds are made of cooked seabed. The diamond on your finger is most likely made of recycled seabed cooked deep in the Earth. Traces of salt trapped in many diamonds show the stones are formed from ancient seabeds that became buried deep beneath the Earth’s crust, according to new research.

Demand for sand: the largest mining industry no one talks about

The world’s largest and perhaps most destructive mining industry is rarely discussed. Approximately 85 percent of all material mined from the earth is a simple and widely available resource: sand. Because it is so cheap and readily available, it is mined by everyone from guy with a shovel, to multi-million dollar machine operations.

Live fast, die young: Study shows tiny fishes fuel coral reefs

Scientists have long sought to understand how coral reefs support such an abundance of fish life despite their location in nutrient-poor waters. According to a new study, an unlikely group fuels these communities: tiny, mostly bottom-dwelling creatures called ‘cryptobenthic’ reef fishes.