Tuesday, February 28, 2017

Correspondence: Refresher

By Moristotle

After all the enemying, don’t you think your readers need a few days off from you-know-who?

People can learn from nature if we pay attention.
    By flying in a “V” formation, geese add about 70% to their flying range, compared to each bird’s flying alone. Imagine what folks could do if they worked together more.



Not good news, but at least it doesn’t mention…you-know-who: “Scientists just measured a rapid growth in acidity in the Arctic ocean, linked to climate change” [Chelsea Harvey, Washington Post, February 27]. Excerpt:
The Arctic is suffering so many consequences related to climate change, it’s hard to know where to begin anymore. It’s warming more rapidly than almost any other part of the planet; its glaciers are melting and its sea ice is retreating; and its most iconic wildlife, including polar bears and walruses, are suffering.
    But that’s not all — a new study, just out Monday in the journal Nature Climate Change, indicates that the Arctic Ocean is also becoming more acidic, another consequence caused by greenhouse gases in the atmosphere. It’s a process that occurs when carbon dioxide dissolves out of the air and into the sea, lowering the water’s pH in the process.
    Scientists believe acidification is occurring at varying rates all over the world. But this week’s study gives researchers renewed cause to worry about the Arctic, suggesting that a large — and increasing — swath of the ocean may have reached a level that’s dangerous for some marine organisms.
    The new research focuses on the water concentrations of a mineral called aragonite, which is a form of calcium carbonate, a chemical compound that plankton, shellfish and even deep-sea corals use to build their hard outer shells. When ocean water becomes more acidic, chemical reactions occur that impede the formation of calcium carbonate and lower its concentration in the water, which can be a major threat for these marine animals. [read more]

The fastest transport ship
the world has ever seen?



Grateful for correspondence, Moristotle

1 comment:

  1. Thanks for this diversion and posting, Morris. A good collage of important and interesting things.

    ReplyDelete