In Nairobi, recycling poo is cleaning up the slums

"When I started, there was poop in bags everywhere," said Ricky Ojwang, skillfully navigating a rubbish-strewn canal in Mukuru, a Nairobi slum where he's worked to improve sanitation since 2012.

These microbes 'eat' electrons for energy

The human body is populated by a greater number of microbes than its own cells. These microbes survive using metabolic pathways that vary drastically from those of humans.

Plastic teabags release microscopic particles into tea

Many people are trying to reduce their plastic use, but some tea manufacturers are moving in the opposite direction: replacing traditional paper teabags with plastic ones. Now, researchers reporting in ACS' Environmental ...

Hidden danger from pet dogs in Africa

Dogs in tropical Africa run the risk of contracting canine trypanosomosis if they are bitten by bloodsucking tsetse flies carrying trypanosomes—microscopic, single-celled organisms found in the bloodstream. In dogs, this ...

Bolivia lost 1.2 mn hectares to fires this year, govt says

Fires have destroyed 1.2 million hectares (3.2 million acres) of forest and grasslands in Bolivia this year, the government said on Wednesday, though environmentalists claim the true figure is much greater.

Nanoparticles could someday give humans built-in night vision

Movies featuring heroes with superpowers, such as flight, X-ray vision or extraordinary strength, are all the rage. But while these popular characters are mere flights of fancy, scientists have used nanoparticles to confer ...

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