Human footprints dating back 120,000 years found in Saudi Arabia

Around 120,000 years ago in what is now northern Saudi Arabia, a small band of homo sapiens stopped to drink and forage at a shallow lake that was also frequented by camels, buffalo and elephants bigger than any species seen ...

Human impacts on the deep seafloor

Scientists have for the first time estimated the physical footprint of human activities on the deep seafloor of the North East Atlantic. The findings published in the journal PLoS ONE reveal that the area disturbed by bottom ...

Fighting climate change with 'poop power'

The stench of clogged toilets fills the air at the US capital's wastewater treatment facility. And for good reason—it's one of the world's largest projects to transform human waste into electricity.

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