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The plant commonly known as the drumstick tree is cultivated for food and natural oils, and the seeds are already used for a type of rudimentary water purification. Researchers from Carnegie Mellon University in the US used sand and plant materials to create a cheap and effective water filtration medium, termed "f-sand."
The melting of Antarctica is accelerating at an alarming rate, with about 3 trillion tons of ice disappearing since 1992, an international team of ice experts said in a new study. In the last quarter century, the southern-most continent's ice sheet - a key indicator of climate change - melted into enough water to cover Texas to a depth of nearly 13 feet (4 meters), scientists calculated.
Slow and steady wins the race, the saying goes, and it seems to have worked for a small type of turtle native to western Mexico that has been declared a new species. For 20 years, residents of the area around Puerto Vallarta, a Pacific coast resort town, had been telling scientists about the little turtles native to their area.
Plastic waste and toxic chemicals found in remote parts of the Antarctic this year add to evidence that pollution is spreading to the ends of the Earth, environmental group Greenpeace said on Thursday. Microplastics - tiny bits of plastic from the breakdown of everything from shopping bags to car tyres - were detected in nine of 17 water samples collected off the Antarctic peninsula by a Greenpeace vessel in early 2018, it said.
Green infrastructure - from more cycle lanes to cleaner air - not only helps the environment but also boosts jobs, health and productivity, according to research released on Wednesday. Spending money on improved public transport could create up to 23 million extra jobs each year, according to researchers at the University of Leeds in Britain.