Removing salts and other impurities from water is really difficult. For thousands of years people, including Aristotle, tried to make fresh water from sea water. In the 21st century, advances in desalination technology mean ...
Environment
Feb 12, 2019
3
27
The American blue crab (Callinectes sapidus) is an invasive voracious alien species, with no known predators and with high reproductive and survival rates, which has now spread throughout the Mediterranean. Since it appeared ...
Plants & Animals
Jan 28, 2019
0
104
A new study throws into question the notion that today's crocodiles and alligators have a simple evolutionary past.
Archaeology
Jan 24, 2019
0
433
Pacific salmon are one of Canada's iconic creatures. Each summer, they complete their, on average, four- to five-year-long life cycle by returning from their rich ocean feeding grounds to the creeks and streams where they ...
Ecology
Jan 23, 2019
0
7
The Florida Keys' ospreys, the fierce fish hawks whose massive nests dot utility poles, channel markers and nesting platforms up and down the ribbon of islands, will no longer be listed as an imperiled species by the state.
Plants & Animals
Jan 18, 2019
0
6
Biologists at The University of Texas at Austin have discovered three new species of groundwater salamander in Central Texas, including one living west of Austin that they say is critically endangered. They also determined ...
Ecology
Jan 14, 2019
0
423
More than 16,000 desalination plants scattered across the globe produce far more toxic sludge than fresh water, according to a first global assessment of the sector's industrial waste, published Monday.
Environment
Jan 14, 2019
10
1425
An elephant never forgets. This seems to be the case, at least, for elephants roaming about Namibia, looking for food, fresh water, and other resources.
Ecology
Jan 9, 2019
0
22
Fresh food is so attractive to astronauts that they celebrated with salad when they were able to cultivate a few lettuce heads on the International Space Station three years ago. In 2021, scientists hope to grow beans in ...
Space Exploration
Jan 7, 2019
1
26
A new Tel Aviv University study describes a process to make bioplastic polymers that don't require land or fresh water—resources that are scarce in much of the world. The polymer is derived from microorganisms that feed ...
Polymers
Dec 24, 2018
17
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