|El Salvador, Prizing Water Over Gold, Bans All Metal Mining|
The New York Times - 3/29/2017. By Gene Palumbo and Elisabeth Malkin - Lawmakers in El Salvador voted overwhelmingly on Wednesday to prohibit all mining for gold and other metals, making the country the first in the world to impose a nationwide ban on metal mining, environmental activists said.
|Soil microbes hold key to climate puzzle|
Climate News Network - 3/28/2017. By Tim Radford - Scientific studies cast new light on the complex role soil microbes play in affecting ecosystems, atmospheric carbon levels and the climate.
|Scientists convert spinach leaves into human heart tissue – that beats|
The Washington Post - 3/27/2017. By Ben Guarino - If an overhyped vegetable existed before marketers coined the term superfood – and long before Oprah Winfrey chatted up acai berries with Dr. Oz – look no further than spinach. (Here’s to Popeye, eating the stuff by the can to inflate his biceps.) Spinach alone, of course, won’t pump anyone up. But it does have a few physical properties of the type that excite biomedical engineers. Spinach grows a network of veins, for instance, that thread through its leaves in a way similar to blood vessels through a human heart.